Subtract 75/80 from 90/7
1st number: 12 6/7, 2nd number: 75/80
90/7 - 75/80 is 1335/112.
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,
90/7 = 90 × 80/7 × 80 = 7200/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
75/80 = 75 × 7/80 × 7 = 525/560 - Subtract the two like fractions:
7200/560 - 525/560 = 7200 - 525/560 = 6675/560 - After reducing the fraction, the answer is 1335/112
- In mixed form: 11103/112
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