Subtract 27/7 from 16/40
1st number: 16/40, 2nd number: 3 6/7
16/40 - 27/7 is -121/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 7 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
16/40 = 16 × 7/40 × 7 = 112/280 - Likewise, for the 2nd fraction, since 7 × 40 = 280,
27/7 = 27 × 40/7 × 40 = 1080/280 - Subtract the two like fractions:
112/280 - 1080/280 = 112 - 1080/280 = -968/280 - After reducing the fraction, the answer is -121/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/40-27/7 16/40-54/7 16/80-27/7 16/40-27/14 48/40-27/7 16/40-81/7 16/40-27/21 80/40-27/7 16/40-27/35 16/40-27/49