Subtract 21/48 from 90/42
1st number: 2 6/42, 2nd number: 21/48
90/42 - 21/48 is 191/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 42 × 8 = 336,
90/42 = 90 × 8/42 × 8 = 720/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
21/48 = 21 × 7/48 × 7 = 147/336 - Subtract the two like fractions:
720/336 - 147/336 = 720 - 147/336 = 573/336 - After reducing the fraction, the answer is 191/112
- In mixed form: 179/112
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