Subtract 28/90 from 20/15
1st number: 1 5/15, 2nd number: 28/90
20/15 - 28/90 is 46/45.
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,
20/15 = 20 × 6/15 × 6 = 120/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
28/90 = 28 × 1/90 × 1 = 28/90 - Subtract the two like fractions:
120/90 - 28/90 = 120 - 28/90 = 92/90 - After reducing the fraction, the answer is 46/45
- In mixed form: 11/45
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