Subtract 21/56 from 90/25
1st number: 3 15/25, 2nd number: 21/56
90/25 - 21/56 is 129/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 56 is 1400
Next, find the equivalent fraction of both fractional numbers with denominator 1400 - For the 1st fraction, since 25 × 56 = 1400,
90/25 = 90 × 56/25 × 56 = 5040/1400 - Likewise, for the 2nd fraction, since 56 × 25 = 1400,
21/56 = 21 × 25/56 × 25 = 525/1400 - Subtract the two like fractions:
5040/1400 - 525/1400 = 5040 - 525/1400 = 4515/1400 - After reducing the fraction, the answer is 129/40
- In mixed form: 39/40
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