Subtract 30/50 from 7/70
7/70 - 30/50 is -1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 50 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 70 × 5 = 350,
7/70 = 7 × 5/70 × 5 = 35/350 - Likewise, for the 2nd fraction, since 50 × 7 = 350,
30/50 = 30 × 7/50 × 7 = 210/350 - Subtract the two like fractions:
35/350 - 210/350 = 35 - 210/350 = -175/350 - After reducing the fraction, the answer is -1/2
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