Subtract 21/48 from 70/9
1st number: 7 7/9, 2nd number: 21/48
70/9 - 21/48 is 1057/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 48 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 9 × 16 = 144,
70/9 = 70 × 16/9 × 16 = 1120/144 - Likewise, for the 2nd fraction, since 48 × 3 = 144,
21/48 = 21 × 3/48 × 3 = 63/144 - Subtract the two like fractions:
1120/144 - 63/144 = 1120 - 63/144 = 1057/144 - In mixed form: 749/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/9-42/48 70/18-21/48 70/9-21/96 70/9-63/48 70/27-21/48 70/45-21/48 70/63-21/48