Subtract 30/45 from 27/20
1st number: 1 7/20, 2nd number: 30/45
27/20 - 30/45 is 41/60.
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,
27/20 = 27 × 9/20 × 9 = 243/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
30/45 = 30 × 4/45 × 4 = 120/180 - Subtract the two like fractions:
243/180 - 120/180 = 243 - 120/180 = 123/180 - After reducing the fraction, the answer is 41/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/20-30/45 27/20-60/45 27/40-30/45 27/20-30/90 81/20-30/45 27/20-90/45 27/60-30/45