Subtract 7/80 from 21/8
1st number: 2 5/8, 2nd number: 7/80
21/8 - 7/80 is 203/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 8 × 10 = 80,
21/8 = 21 × 10/8 × 10 = 210/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
7/80 = 7 × 1/80 × 1 = 7/80 - Subtract the two like fractions:
210/80 - 7/80 = 210 - 7/80 = 203/80 - In mixed form: 243/80
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