Subtract 2/90 from 21/15
1st number: 1 6/15, 2nd number: 2/90
21/15 - 2/90 is 62/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
21/15 = 21 × 6/15 × 6 = 126/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
2/90 = 2 × 1/90 × 1 = 2/90 - Subtract the two like fractions:
126/90 - 2/90 = 126 - 2/90 = 124/90 - After reducing the fraction, the answer is 62/45
- In mixed form: 117/45
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