Subtract 9/63 from 42/20
1st number: 2 2/20, 2nd number: 9/63
42/20 - 9/63 is 137/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
42/20 = 42 × 63/20 × 63 = 2646/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
9/63 = 9 × 20/63 × 20 = 180/1260 - Subtract the two like fractions:
2646/1260 - 180/1260 = 2646 - 180/1260 = 2466/1260 - After reducing the fraction, the answer is 137/70
- In mixed form: 167/70
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