Subtract 42/21 from 1/63
1st number: 1/63, 2nd number: 2 0/21
1/63 - 42/21 is -125/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 21 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
1/63 = 1 × 1/63 × 1 = 1/63 - Likewise, for the 2nd fraction, since 21 × 3 = 63,
42/21 = 42 × 3/21 × 3 = 126/63 - Subtract the two like fractions:
1/63 - 126/63 = 1 - 126/63 = -125/63
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