Subtract 27/18 from 45/70
1st number: 45/70, 2nd number: 1 9/18
45/70 - 27/18 is -6/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 18 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
45/70 = 45 × 9/70 × 9 = 405/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
27/18 = 27 × 35/18 × 35 = 945/630 - Subtract the two like fractions:
405/630 - 945/630 = 405 - 945/630 = -540/630 - After reducing the fraction, the answer is -6/7
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