Subtract 5/54 from 18/70
18/70 - 5/54 is 311/1890.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 54 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 70 × 27 = 1890,
18/70 = 18 × 27/70 × 27 = 486/1890 - Likewise, for the 2nd fraction, since 54 × 35 = 1890,
5/54 = 5 × 35/54 × 35 = 175/1890 - Subtract the two like fractions:
486/1890 - 175/1890 = 486 - 175/1890 = 311/1890
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/70-5/54 18/70-10/54 54/70-5/54 18/70-15/54 90/70-5/54 18/70-25/54 18/70-35/54