Subtract 63/5 from 72/15
1st number: 4 12/15, 2nd number: 12 3/5
72/15 - 63/5 is -39/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 5 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 15 × 1 = 15,
72/15 = 72 × 1/15 × 1 = 72/15 - Likewise, for the 2nd fraction, since 5 × 3 = 15,
63/5 = 63 × 3/5 × 3 = 189/15 - Subtract the two like fractions:
72/15 - 189/15 = 72 - 189/15 = -117/15 - After reducing the fraction, the answer is -39/5
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