The phrase "a fraction lower" is correct and usable in written English.
It can be used to describe a quantity or measurement that is slightly less than another value.
Example: "The temperature today is a fraction lower than it was yesterday, indicating a slight drop in warmth."
Alternatives: "slightly lower" or "a bit lower".
The basic assumption is based on the statistics that the compressive modulus is a fraction lower than the tensile modulus.
Had Michael Timlin's 30-yard drive dipped a fraction lower instead of thudding against the crossbar, who knows how the contest might have panned out?
Last night investors had to pay $856,000 to insure $10m of Glencore's five year bonds against defaulting – just a fraction lower than the peak of its previous market crisis a few months ago.
But today's report, which only covers emissions from energy, by the PBL Netherlands Environmental Assessment Agency and the European commission's Joint Research Centre JRCC) show that per capita emissions in China increased by 9% in 2011 to reach 7.2 tonnes per person, only a fraction lower than the EU average of 7.5 tonnes.
Dementieva, a worthy Olympic champion but still not widely known, might well be thinking how much more famous she would now be had she just managed to roll the ball just a fraction lower with her cross-court attempted pass or perhaps tried to change the direction.
Germany's manufacturing PMI was barely higher than the previous month and France's was a fraction lower.
Equation 1 involves that a probability of 70%% of ablating a 1 g of tissue requires a survival fraction lower than 10−9.
The important differences in number of individuals between our mapping progenies (106 versus 55) compelled us to perform the analyses with a narrow window of markers (only those with a recombination fraction lower than 0.1), while in Plomion and O'Malley [ 57] analyses were performed with a wider window (markers pairs with a recombination fraction lower than 0.3).
At a higher solidification fraction, lower concavity of the crystal melt interface near the crucible wall can be obtained as compared to the standard model.
Bamboo was characterized as having a high green vegetation (GV) fraction, lower non-photosynthetic vegetation (NPV) and a low shade fraction, while pine exhibited higher NPV and shade fractions.
Patients who received dopamine had a better right ventricular ejection fraction, lower lactate levels, lower systemic vascular resistance index and a trend towards a better cardiac index.
