Subtract 20/45 from 24/70
24/70 - 20/45 is -32/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
24/70 = 24 × 9/70 × 9 = 216/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
20/45 = 20 × 14/45 × 14 = 280/630 - Subtract the two like fractions:
216/630 - 280/630 = 216 - 280/630 = -64/630 - After reducing the fraction, the answer is -32/315
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