Subtract 4/3 from 80/70
1st number: 1 10/70, 2nd number: 1 1/3
80/70 - 4/3 is -4/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 3 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
80/70 = 80 × 3/70 × 3 = 240/210 - Likewise, for the 2nd fraction, since 3 × 70 = 210,
4/3 = 4 × 70/3 × 70 = 280/210 - Subtract the two like fractions:
240/210 - 280/210 = 240 - 280/210 = -40/210 - After reducing the fraction, the answer is -4/21
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