Subtract 60/21 from 60/20
1st number: 3 0/20, 2nd number: 2 18/21
60/20 - 60/21 is 1/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 21 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
60/20 = 60 × 21/20 × 21 = 1260/420 - Likewise, for the 2nd fraction, since 21 × 20 = 420,
60/21 = 60 × 20/21 × 20 = 1200/420 - Subtract the two like fractions:
1260/420 - 1200/420 = 1260 - 1200/420 = 60/420 - After reducing the fraction, the answer is 1/7
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