Subtract 70/9 from 90/8
1st number: 11 2/8, 2nd number: 7 7/9
90/8 - 70/9 is 125/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
90/8 = 90 × 9/8 × 9 = 810/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
70/9 = 70 × 8/9 × 8 = 560/72 - Subtract the two like fractions:
810/72 - 560/72 = 810 - 560/72 = 250/72 - After reducing the fraction, the answer is 125/36
- In mixed form: 317/36
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