Subtract 21/48 from 20/7
1st number: 2 6/7, 2nd number: 21/48
20/7 - 21/48 is 271/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 7 × 48 = 336,
20/7 = 20 × 48/7 × 48 = 960/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
21/48 = 21 × 7/48 × 7 = 147/336 - Subtract the two like fractions:
960/336 - 147/336 = 960 - 147/336 = 813/336 - After reducing the fraction, the answer is 271/112
- In mixed form: 247/112
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