Subtract 14/9 from 42/20
1st number: 2 2/20, 2nd number: 1 5/9
42/20 - 14/9 is 49/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
42/20 = 42 × 9/20 × 9 = 378/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
14/9 = 14 × 20/9 × 20 = 280/180 - Subtract the two like fractions:
378/180 - 280/180 = 378 - 280/180 = 98/180 - After reducing the fraction, the answer is 49/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/20-14/9 42/20-28/9 42/40-14/9 42/20-14/18 42/20-42/9 42/60-14/9 42/20-14/27 42/20-70/9 42/20-14/45 42/20-98/9 42/20-14/63