Subtract 56/20 from 75/70
1st number: 1 5/70, 2nd number: 2 16/20
75/70 - 56/20 is -121/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
75/70 = 75 × 2/70 × 2 = 150/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
56/20 = 56 × 7/20 × 7 = 392/140 - Subtract the two like fractions:
150/140 - 392/140 = 150 - 392/140 = -242/140 - After reducing the fraction, the answer is -121/70
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