Subtract 75/20 from 70/63
1st number: 1 7/63, 2nd number: 3 15/20
70/63 - 75/20 is -95/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
70/63 = 70 × 20/63 × 20 = 1400/1260 - Likewise, for the 2nd fraction, since 20 × 63 = 1260,
75/20 = 75 × 63/20 × 63 = 4725/1260 - Subtract the two like fractions:
1400/1260 - 4725/1260 = 1400 - 4725/1260 = -3325/1260 - After reducing the fraction, the answer is -95/36
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