Subtract 5/3 from 21/80
1st number: 21/80, 2nd number: 1 2/3
21/80 - 5/3 is -337/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 3 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
21/80 = 21 × 3/80 × 3 = 63/240 - Likewise, for the 2nd fraction, since 3 × 80 = 240,
5/3 = 5 × 80/3 × 80 = 400/240 - Subtract the two like fractions:
63/240 - 400/240 = 63 - 400/240 = -337/240
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