Subtract 16/40 from 24/90
24/90 - 16/40 is -2/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
24/90 = 24 × 4/90 × 4 = 96/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
16/40 = 16 × 9/40 × 9 = 144/360 - Subtract the two like fractions:
96/360 - 144/360 = 96 - 144/360 = -48/360 - After reducing the fraction, the answer is -2/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/90-16/40 24/90-32/40 24/90-16/80 72/90-16/40 24/90-48/40 24/90-80/40