Subtract 20/27 from 3/70
3/70 - 20/27 is -1319/1890.
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,
3/70 = 3 × 27/70 × 27 = 81/1890 - Likewise, for the 2nd fraction, since 27 × 70 = 1890,
20/27 = 20 × 70/27 × 70 = 1400/1890 - Subtract the two like fractions:
81/1890 - 1400/1890 = 81 - 1400/1890 = -1319/1890
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