Subtract 21/90 from 4/3
1st number: 1 1/3, 2nd number: 21/90
4/3 - 21/90 is 11/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 3 × 30 = 90,
4/3 = 4 × 30/3 × 30 = 120/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
21/90 = 21 × 1/90 × 1 = 21/90 - Subtract the two like fractions:
120/90 - 21/90 = 120 - 21/90 = 99/90 - After reducing the fraction, the answer is 11/10
- In mixed form: 11/10
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