Subtract 20/60 from 9/7
1st number: 1 2/7, 2nd number: 20/60
9/7 - 20/60 is 20/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 7 × 60 = 420,
9/7 = 9 × 60/7 × 60 = 540/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
20/60 = 20 × 7/60 × 7 = 140/420 - Subtract the two like fractions:
540/420 - 140/420 = 540 - 140/420 = 400/420 - After reducing the fraction, the answer is 20/21
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