Subtract 9/27 from 10/70
10/70 - 9/27 is -4/21.
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,
10/70 = 10 × 27/70 × 27 = 270/1890 - Likewise, for the 2nd fraction, since 27 × 70 = 1890,
9/27 = 9 × 70/27 × 70 = 630/1890 - Subtract the two like fractions:
270/1890 - 630/1890 = 270 - 630/1890 = -360/1890 - After reducing the fraction, the answer is -4/21
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