Subtract 48/90 from 1/20
1/20 - 48/90 is -29/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
1/20 = 1 × 9/20 × 9 = 9/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
48/90 = 48 × 2/90 × 2 = 96/180 - Subtract the two like fractions:
9/180 - 96/180 = 9 - 96/180 = -87/180 - After reducing the fraction, the answer is -29/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/20-48/90 1/20-96/90 1/40-48/90 3/20-48/90 1/60-48/90 5/20-48/90 7/20-48/90