Subtract 70/12 from 20/72
1st number: 20/72, 2nd number: 5 10/12
20/72 - 70/12 is -50/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 12 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
20/72 = 20 × 1/72 × 1 = 20/72 - Likewise, for the 2nd fraction, since 12 × 6 = 72,
70/12 = 70 × 6/12 × 6 = 420/72 - Subtract the two like fractions:
20/72 - 420/72 = 20 - 420/72 = -400/72 - After reducing the fraction, the answer is -50/9
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