Subtract 21/80 from 84/25
1st number: 3 9/25, 2nd number: 21/80
84/25 - 21/80 is 1239/400.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 80 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 25 × 16 = 400,
84/25 = 84 × 16/25 × 16 = 1344/400 - Likewise, for the 2nd fraction, since 80 × 5 = 400,
21/80 = 21 × 5/80 × 5 = 105/400 - Subtract the two like fractions:
1344/400 - 105/400 = 1344 - 105/400 = 1239/400 - In mixed form: 339/400
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