Subtract 70/48 from 2/21
1st number: 2/21, 2nd number: 1 22/48
2/21 - 70/48 is -229/168.
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,
2/21 = 2 × 16/21 × 16 = 32/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
70/48 = 70 × 7/48 × 7 = 490/336 - Subtract the two like fractions:
32/336 - 490/336 = 32 - 490/336 = -458/336 - After reducing the fraction, the answer is -229/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/21-70/48 2/42-70/48 2/21-70/96 6/21-70/48 2/63-70/48 10/21-70/48 14/21-70/48