Subtract 15/42 from 63/5
1st number: 12 3/5, 2nd number: 15/42
63/5 - 15/42 is 857/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 5 × 42 = 210,
63/5 = 63 × 42/5 × 42 = 2646/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
15/42 = 15 × 5/42 × 5 = 75/210 - Subtract the two like fractions:
2646/210 - 75/210 = 2646 - 75/210 = 2571/210 - After reducing the fraction, the answer is 857/70
- In mixed form: 1217/70
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