Subtract 20/10 from 10/84
1st number: 10/84, 2nd number: 2 0/10
10/84 - 20/10 is -79/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 10 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
10/84 = 10 × 5/84 × 5 = 50/420 - Likewise, for the 2nd fraction, since 10 × 42 = 420,
20/10 = 20 × 42/10 × 42 = 840/420 - Subtract the two like fractions:
50/420 - 840/420 = 50 - 840/420 = -790/420 - After reducing the fraction, the answer is -79/42
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