Subtract 54/27 from 63/70
1st number: 63/70, 2nd number: 2 0/27
63/70 - 54/27 is -11/10.
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,
63/70 = 63 × 27/70 × 27 = 1701/1890 - Likewise, for the 2nd fraction, since 27 × 70 = 1890,
54/27 = 54 × 70/27 × 70 = 3780/1890 - Subtract the two like fractions:
1701/1890 - 3780/1890 = 1701 - 3780/1890 = -2079/1890 - After reducing the fraction, the answer is -11/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/70-54/81