Subtract 4/80 from 75/70
1st number: 1 5/70, 2nd number: 4/80
75/70 - 4/80 is 143/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 70 × 8 = 560,
75/70 = 75 × 8/70 × 8 = 600/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
4/80 = 4 × 7/80 × 7 = 28/560 - Subtract the two like fractions:
600/560 - 28/560 = 600 - 28/560 = 572/560 - After reducing the fraction, the answer is 143/140
- In mixed form: 13/140
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