Subtract 8/9 from 27/70
27/70 - 8/9 is -317/630.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 9 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
27/70 = 27 × 9/70 × 9 = 243/630 - Likewise, for the 2nd fraction, since 9 × 70 = 630,
8/9 = 8 × 70/9 × 70 = 560/630 - Subtract the two like fractions:
243/630 - 560/630 = 243 - 560/630 = -317/630
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