Subtract 15/70 from 18/48
18/48 - 15/70 is 9/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 70 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 48 × 35 = 1680,
18/48 = 18 × 35/48 × 35 = 630/1680 - Likewise, for the 2nd fraction, since 70 × 24 = 1680,
15/70 = 15 × 24/70 × 24 = 360/1680 - Subtract the two like fractions:
630/1680 - 360/1680 = 630 - 360/1680 = 270/1680 - After reducing the fraction, the answer is 9/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/48-15/70 18/48-30/70 18/96-15/70 54/48-15/70 18/48-45/70 90/48-15/70 18/48-75/70