Subtract 15/7 from 21/48
1st number: 21/48, 2nd number: 2 1/7
21/48 - 15/7 is -191/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 7 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 48 × 7 = 336,
21/48 = 21 × 7/48 × 7 = 147/336 - Likewise, for the 2nd fraction, since 7 × 48 = 336,
15/7 = 15 × 48/7 × 48 = 720/336 - Subtract the two like fractions:
147/336 - 720/336 = 147 - 720/336 = -573/336 - After reducing the fraction, the answer is -191/112
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