Subtract 84/9 from 28/90
1st number: 28/90, 2nd number: 9 3/9
28/90 - 84/9 is -406/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
28/90 = 28 × 1/90 × 1 = 28/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
84/9 = 84 × 10/9 × 10 = 840/90 - Subtract the two like fractions:
28/90 - 840/90 = 28 - 840/90 = -812/90 - After reducing the fraction, the answer is -406/45
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