Subtract 63/21 from 36/14
1st number: 2 8/14, 2nd number: 3 0/21
36/14 - 63/21 is -3/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
36/14 = 36 × 3/14 × 3 = 108/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
63/21 = 63 × 2/21 × 2 = 126/42 - Subtract the two like fractions:
108/42 - 126/42 = 108 - 126/42 = -18/42 - After reducing the fraction, the answer is -3/7
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