Subtract 20/30 from 49/45
1st number: 1 4/45, 2nd number: 20/30
49/45 - 20/30 is 19/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
49/45 = 49 × 2/45 × 2 = 98/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
20/30 = 20 × 3/30 × 3 = 60/90 - Subtract the two like fractions:
98/90 - 60/90 = 98 - 60/90 = 38/90 - After reducing the fraction, the answer is 19/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/45-20/30 49/45-40/30 49/90-20/30 49/45-20/60 49/45-60/30 49/45-20/90