Subtract 98/45 from 27/20
1st number: 1 7/20, 2nd number: 2 8/45
27/20 - 98/45 is -149/180.
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,
98/45 = 98 × 4/45 × 4 = 392/180 - Subtract the two like fractions:
243/180 - 392/180 = 243 - 392/180 = -149/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/20-98/45 27/40-98/45 27/20-98/90 81/20-98/45 27/60-98/45