Subtract 45/21 from 90/25
1st number: 3 15/25, 2nd number: 2 3/21
90/25 - 45/21 is 51/35.
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,
90/25 = 90 × 21/25 × 21 = 1890/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
45/21 = 45 × 25/21 × 25 = 1125/525 - Subtract the two like fractions:
1890/525 - 1125/525 = 1890 - 1125/525 = 765/525 - After reducing the fraction, the answer is 51/35
- In mixed form: 116/35
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