Subtract 75/27 from 18/70
1st number: 18/70, 2nd number: 2 21/27
18/70 - 75/27 is -794/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 27 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 70 × 27 = 1890,
18/70 = 18 × 27/70 × 27 = 486/1890 - Likewise, for the 2nd fraction, since 27 × 70 = 1890,
75/27 = 75 × 70/27 × 70 = 5250/1890 - Subtract the two like fractions:
486/1890 - 5250/1890 = 486 - 5250/1890 = -4764/1890 - After reducing the fraction, the answer is -794/315
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