Subtract 45/63 from 42/2
1st number: 21 0/2, 2nd number: 45/63
42/2 - 45/63 is 142/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 2 × 63 = 126,
42/2 = 42 × 63/2 × 63 = 2646/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
45/63 = 45 × 2/63 × 2 = 90/126 - Subtract the two like fractions:
2646/126 - 90/126 = 2646 - 90/126 = 2556/126 - After reducing the fraction, the answer is 142/7
- In mixed form: 202/7
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