Subtract 12/7 from 75/9
1st number: 8 3/9, 2nd number: 1 5/7
75/9 - 12/7 is 139/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
75/9 = 75 × 7/9 × 7 = 525/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
12/7 = 12 × 9/7 × 9 = 108/63 - Subtract the two like fractions:
525/63 - 108/63 = 525 - 108/63 = 417/63 - After reducing the fraction, the answer is 139/21
- In mixed form: 613/21
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