Subtract 21/32 from 90/18
1st number: 5 0/18, 2nd number: 21/32
90/18 - 21/32 is 139/32.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 32 is 288
Next, find the equivalent fraction of both fractional numbers with denominator 288 - For the 1st fraction, since 18 × 16 = 288,
90/18 = 90 × 16/18 × 16 = 1440/288 - Likewise, for the 2nd fraction, since 32 × 9 = 288,
21/32 = 21 × 9/32 × 9 = 189/288 - Subtract the two like fractions:
1440/288 - 189/288 = 1440 - 189/288 = 1251/288 - After reducing the fraction, the answer is 139/32
- In mixed form: 411/32
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