Subtract 54/48 from 21/7
1st number: 3 0/7, 2nd number: 1 6/48
21/7 - 54/48 is 15/8.
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,
21/7 = 21 × 48/7 × 48 = 1008/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
54/48 = 54 × 7/48 × 7 = 378/336 - Subtract the two like fractions:
1008/336 - 378/336 = 1008 - 378/336 = 630/336 - After reducing the fraction, the answer is 15/8
- In mixed form: 17/8
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