Subtract 20/45 from 14/20
14/20 - 20/45 is 23/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
14/20 = 14 × 9/20 × 9 = 126/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
20/45 = 20 × 4/45 × 4 = 80/180 - Subtract the two like fractions:
126/180 - 80/180 = 126 - 80/180 = 46/180 - After reducing the fraction, the answer is 23/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/20-20/45 14/20-40/45 14/40-20/45 14/20-20/90 42/20-20/45 14/20-60/45 14/60-20/45 70/20-20/45 98/20-20/45