Subtract 90/16 from 36/15
1st number: 2 6/15, 2nd number: 5 10/16
36/15 - 90/16 is -129/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 16 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
36/15 = 36 × 16/15 × 16 = 576/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
90/16 = 90 × 15/16 × 15 = 1350/240 - Subtract the two like fractions:
576/240 - 1350/240 = 576 - 1350/240 = -774/240 - After reducing the fraction, the answer is -129/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/15-90/16 36/30-90/16 36/15-90/32 36/45-90/16 36/15-90/48 36/75-90/16 36/15-90/80