Subtract 50/42 from 70/63
1st number: 1 7/63, 2nd number: 1 8/42
70/63 - 50/42 is -5/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 63 × 2 = 126,
70/63 = 70 × 2/63 × 2 = 140/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
50/42 = 50 × 3/42 × 3 = 150/126 - Subtract the two like fractions:
140/126 - 150/126 = 140 - 150/126 = -10/126 - After reducing the fraction, the answer is -5/63
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