Subtract 16/70 from 81/56
1st number: 1 25/56, 2nd number: 16/70
81/56 - 16/70 is 341/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
81/56 = 81 × 5/56 × 5 = 405/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
16/70 = 16 × 4/70 × 4 = 64/280 - Subtract the two like fractions:
405/280 - 64/280 = 405 - 64/280 = 341/280 - In mixed form: 161/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/56-32/70 81/56-48/70 81/56-80/70