Subtract 63/45 from 12/30
1st number: 12/30, 2nd number: 1 18/45
12/30 - 63/45 is -1/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
12/30 = 12 × 3/30 × 3 = 36/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
63/45 = 63 × 2/45 × 2 = 126/90 - Subtract the two like fractions:
36/90 - 126/90 = 36 - 126/90 = -90/90 - After reducing the fraction, the answer is -1/1
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