Subtract 48/18 from 18/70
1st number: 18/70, 2nd number: 2 12/18
18/70 - 48/18 is -253/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 18 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
18/70 = 18 × 9/70 × 9 = 162/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
48/18 = 48 × 35/18 × 35 = 1680/630 - Subtract the two like fractions:
162/630 - 1680/630 = 162 - 1680/630 = -1518/630 - After reducing the fraction, the answer is -253/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/70-48/18 18/70-96/18 18/70-48/36 54/70-48/18 18/70-48/54 90/70-48/18 18/70-48/90