Subtract 75/80 from 30/7
1st number: 4 2/7, 2nd number: 75/80
30/7 - 75/80 is 375/112.
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,
30/7 = 30 × 80/7 × 80 = 2400/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
75/80 = 75 × 7/80 × 7 = 525/560 - Subtract the two like fractions:
2400/560 - 525/560 = 2400 - 525/560 = 1875/560 - After reducing the fraction, the answer is 375/112
- In mixed form: 339/112
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