Subtract 63/70 from 45/75
45/75 - 63/70 is -3/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 70 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
45/75 = 45 × 14/75 × 14 = 630/1050 - Likewise, for the 2nd fraction, since 70 × 15 = 1050,
63/70 = 63 × 15/70 × 15 = 945/1050 - Subtract the two like fractions:
630/1050 - 945/1050 = 630 - 945/1050 = -315/1050 - After reducing the fraction, the answer is -3/10
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