Subtract 84/60 from 1/21
1st number: 1/21, 2nd number: 1 24/60
1/21 - 84/60 is -142/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
1/21 = 1 × 20/21 × 20 = 20/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
84/60 = 84 × 7/60 × 7 = 588/420 - Subtract the two like fractions:
20/420 - 588/420 = 20 - 588/420 = -568/420 - After reducing the fraction, the answer is -142/105
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