Subtract 18/48 from 16/20
16/20 - 18/48 is 17/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 20 × 12 = 240,
16/20 = 16 × 12/20 × 12 = 192/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
18/48 = 18 × 5/48 × 5 = 90/240 - Subtract the two like fractions:
192/240 - 90/240 = 192 - 90/240 = 102/240 - After reducing the fraction, the answer is 17/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/20-18/48 16/20-36/48 16/40-18/48 16/20-18/96 48/20-18/48 16/20-54/48 16/60-18/48 80/20-18/48 16/20-90/48