Subtract 36/48 from 9/20
9/20 - 36/48 is -3/10.
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,
9/20 = 9 × 12/20 × 12 = 108/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
36/48 = 36 × 5/48 × 5 = 180/240 - Subtract the two like fractions:
108/240 - 180/240 = 108 - 180/240 = -72/240 - After reducing the fraction, the answer is -3/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/20-36/48 9/20-72/48 9/40-36/48 9/20-36/96 27/20-36/48 9/60-36/48 45/20-36/48 63/20-36/48