Subtract 30/36 from 12/70
12/70 - 30/36 is -139/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 36 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 70 × 18 = 1260,
12/70 = 12 × 18/70 × 18 = 216/1260 - Likewise, for the 2nd fraction, since 36 × 35 = 1260,
30/36 = 30 × 35/36 × 35 = 1050/1260 - Subtract the two like fractions:
216/1260 - 1050/1260 = 216 - 1050/1260 = -834/1260 - After reducing the fraction, the answer is -139/210
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