Subtract 42/3 from 18/70
1st number: 18/70, 2nd number: 14 0/3
18/70 - 42/3 is -481/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 3 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 3 × 70 = 210,
42/3 = 42 × 70/3 × 70 = 2940/210 - Subtract the two like fractions:
54/210 - 2940/210 = 54 - 2940/210 = -2886/210 - After reducing the fraction, the answer is -481/35
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