Subtract 42/48 from 90/7
1st number: 12 6/7, 2nd number: 42/48
90/7 - 42/48 is 671/56.
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,
90/7 = 90 × 48/7 × 48 = 4320/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
42/48 = 42 × 7/48 × 7 = 294/336 - Subtract the two like fractions:
4320/336 - 294/336 = 4320 - 294/336 = 4026/336 - After reducing the fraction, the answer is 671/56
- In mixed form: 1155/56
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