Subtract 15/20 from 16/35
16/35 - 15/20 is -41/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 35 × 4 = 140,
16/35 = 16 × 4/35 × 4 = 64/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
15/20 = 15 × 7/20 × 7 = 105/140 - Subtract the two like fractions:
64/140 - 105/140 = 64 - 105/140 = -41/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/35-15/20 16/35-30/20 16/70-15/20 16/35-15/40 48/35-15/20 16/35-45/20 16/35-15/60 80/35-15/20 16/35-75/20