Subtract 45/7 from 72/9
1st number: 8 0/9, 2nd number: 6 3/7
72/9 - 45/7 is 11/7.
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,
72/9 = 72 × 7/9 × 7 = 504/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
45/7 = 45 × 9/7 × 9 = 405/63 - Subtract the two like fractions:
504/63 - 405/63 = 504 - 405/63 = 99/63 - After reducing the fraction, the answer is 11/7
- In mixed form: 14/7
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