Subtract 2/20 from 24/45
24/45 - 2/20 is 13/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
24/45 = 24 × 4/45 × 4 = 96/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
2/20 = 2 × 9/20 × 9 = 18/180 - Subtract the two like fractions:
96/180 - 18/180 = 96 - 18/180 = 78/180 - After reducing the fraction, the answer is 13/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/45-2/20 24/45-4/20 24/90-2/20 24/45-2/40 72/45-2/20 24/45-6/20 24/45-2/60 24/45-10/20 24/45-14/20