Subtract 63/70 from 4/27
4/27 - 63/70 is -203/270.
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,
4/27 = 4 × 70/27 × 70 = 280/1890 - Likewise, for the 2nd fraction, since 70 × 27 = 1890,
63/70 = 63 × 27/70 × 27 = 1701/1890 - Subtract the two like fractions:
280/1890 - 1701/1890 = 280 - 1701/1890 = -1421/1890 - After reducing the fraction, the answer is -203/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/27-63/70 4/54-63/70 12/27-63/70 4/81-63/70 20/27-63/70 28/27-63/70