Subtract 45/80 from 72/7
1st number: 10 2/7, 2nd number: 45/80
72/7 - 45/80 is 1089/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 7 × 80 = 560,
72/7 = 72 × 80/7 × 80 = 5760/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
45/80 = 45 × 7/80 × 7 = 315/560 - Subtract the two like fractions:
5760/560 - 315/560 = 5760 - 315/560 = 5445/560 - After reducing the fraction, the answer is 1089/112
- In mixed form: 981/112
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