Subtract 40/30 from 18/70
1st number: 18/70, 2nd number: 1 10/30
18/70 - 40/30 is -113/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
18/70 = 18 × 3/70 × 3 = 54/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
40/30 = 40 × 7/30 × 7 = 280/210 - Subtract the two like fractions:
54/210 - 280/210 = 54 - 280/210 = -226/210 - After reducing the fraction, the answer is -113/105
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