Subtract 25/48 from 70/21
1st number: 3 7/21, 2nd number: 25/48
70/21 - 25/48 is 45/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
70/21 = 70 × 16/21 × 16 = 1120/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
25/48 = 25 × 7/48 × 7 = 175/336 - Subtract the two like fractions:
1120/336 - 175/336 = 1120 - 175/336 = 945/336 - After reducing the fraction, the answer is 45/16
- In mixed form: 213/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/21-50/48 70/42-25/48 70/21-25/96 70/21-75/48 70/63-25/48