Subtract 80/84 from 21/20
1st number: 1 1/20, 2nd number: 80/84
21/20 - 80/84 is 41/420.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
21/20 = 21 × 21/20 × 21 = 441/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
80/84 = 80 × 5/84 × 5 = 400/420 - Subtract the two like fractions:
441/420 - 400/420 = 441 - 400/420 = 41/420
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