Subtract 63/70 from 36/45
36/45 - 63/70 is -1/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
36/45 = 36 × 14/45 × 14 = 504/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
63/70 = 63 × 9/70 × 9 = 567/630 - Subtract the two like fractions:
504/630 - 567/630 = 504 - 567/630 = -63/630 - After reducing the fraction, the answer is -1/10
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