Subtract 30/36 from 49/70
49/70 - 30/36 is -2/15.
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,
49/70 = 49 × 18/70 × 18 = 882/1260 - Likewise, for the 2nd fraction, since 36 × 35 = 1260,
30/36 = 30 × 35/36 × 35 = 1050/1260 - Subtract the two like fractions:
882/1260 - 1050/1260 = 882 - 1050/1260 = -168/1260 - After reducing the fraction, the answer is -2/15
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