Subtract 75/42 from 12/45
1st number: 12/45, 2nd number: 1 33/42
12/45 - 75/42 is -319/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
12/45 = 12 × 14/45 × 14 = 168/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
75/42 = 75 × 15/42 × 15 = 1125/630 - Subtract the two like fractions:
168/630 - 1125/630 = 168 - 1125/630 = -957/630 - After reducing the fraction, the answer is -319/210
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