Subtract 42/36 from 21/7
1st number: 3 0/7, 2nd number: 1 6/36
21/7 - 42/36 is 11/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 7 × 36 = 252,
21/7 = 21 × 36/7 × 36 = 756/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
42/36 = 42 × 7/36 × 7 = 294/252 - Subtract the two like fractions:
756/252 - 294/252 = 756 - 294/252 = 462/252 - After reducing the fraction, the answer is 11/6
- In mixed form: 15/6
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