Subtract 80/9 from 70/8
1st number: 8 6/8, 2nd number: 8 8/9
70/8 - 80/9 is -5/36.
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,
70/8 = 70 × 9/8 × 9 = 630/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
80/9 = 80 × 8/9 × 8 = 640/72 - Subtract the two like fractions:
630/72 - 640/72 = 630 - 640/72 = -10/72 - After reducing the fraction, the answer is -5/36
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