Subtract 80/70 from 27/30
1st number: 27/30, 2nd number: 1 10/70
27/30 - 80/70 is -17/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
27/30 = 27 × 7/30 × 7 = 189/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
80/70 = 80 × 3/70 × 3 = 240/210 - Subtract the two like fractions:
189/210 - 240/210 = 189 - 240/210 = -51/210 - After reducing the fraction, the answer is -17/70
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