Subtract 7/70 from 8/30
8/30 - 7/70 is 1/6.
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,
8/30 = 8 × 7/30 × 7 = 56/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
7/70 = 7 × 3/70 × 3 = 21/210 - Subtract the two like fractions:
56/210 - 21/210 = 56 - 21/210 = 35/210 - After reducing the fraction, the answer is 1/6
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