Subtract 72/70 from 20/60
1st number: 20/60, 2nd number: 1 2/70
20/60 - 72/70 is -73/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
20/60 = 20 × 7/60 × 7 = 140/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
72/70 = 72 × 6/70 × 6 = 432/420 - Subtract the two like fractions:
140/420 - 432/420 = 140 - 432/420 = -292/420 - After reducing the fraction, the answer is -73/105
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Related: 40/60-72/70