Subtract 90/45 from 81/24
1st number: 3 9/24, 2nd number: 2 0/45
81/24 - 90/45 is 11/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 24 × 15 = 360,
81/24 = 81 × 15/24 × 15 = 1215/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
90/45 = 90 × 8/45 × 8 = 720/360 - Subtract the two like fractions:
1215/360 - 720/360 = 1215 - 720/360 = 495/360 - After reducing the fraction, the answer is 11/8
- In mixed form: 13/8
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