Subtract 15/21 from 40/25
1st number: 1 15/25, 2nd number: 15/21
40/25 - 15/21 is 31/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 21 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 25 × 21 = 525,
40/25 = 40 × 21/25 × 21 = 840/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
15/21 = 15 × 25/21 × 25 = 375/525 - Subtract the two like fractions:
840/525 - 375/525 = 840 - 375/525 = 465/525 - After reducing the fraction, the answer is 31/35
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