Subtract 90/50 from 21/2
1st number: 10 1/2, 2nd number: 1 40/50
21/2 - 90/50 is 87/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 50 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 2 × 25 = 50,
21/2 = 21 × 25/2 × 25 = 525/50 - Likewise, for the 2nd fraction, since 50 × 1 = 50,
90/50 = 90 × 1/50 × 1 = 90/50 - Subtract the two like fractions:
525/50 - 90/50 = 525 - 90/50 = 435/50 - After reducing the fraction, the answer is 87/10
- In mixed form: 87/10
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