Subtract 7/70 from 2/27
2/27 - 7/70 is -7/270.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 70 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 27 × 70 = 1890,
2/27 = 2 × 70/27 × 70 = 140/1890 - Likewise, for the 2nd fraction, since 70 × 27 = 1890,
7/70 = 7 × 27/70 × 27 = 189/1890 - Subtract the two like fractions:
140/1890 - 189/1890 = 140 - 189/1890 = -49/1890 - After reducing the fraction, the answer is -7/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/27-7/70 2/27-14/70 2/54-7/70 6/27-7/70 2/27-21/70 2/81-7/70 10/27-7/70 2/27-35/70 14/27-7/70 2/27-49/70