Subtract 8/40 from 21/8
1st number: 2 5/8, 2nd number: 8/40
21/8 - 8/40 is 97/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
21/8 = 21 × 5/8 × 5 = 105/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
8/40 = 8 × 1/40 × 1 = 8/40 - Subtract the two like fractions:
105/40 - 8/40 = 105 - 8/40 = 97/40 - In mixed form: 217/40
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