Subtract 56/12 from 45/70
1st number: 45/70, 2nd number: 4 8/12
45/70 - 56/12 is -169/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 12 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
45/70 = 45 × 6/70 × 6 = 270/420 - Likewise, for the 2nd fraction, since 12 × 35 = 420,
56/12 = 56 × 35/12 × 35 = 1960/420 - Subtract the two like fractions:
270/420 - 1960/420 = 270 - 1960/420 = -1690/420 - After reducing the fraction, the answer is -169/42
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