Subtract 45/49 from 42/18
1st number: 2 6/18, 2nd number: 45/49
42/18 - 45/49 is 208/147.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 49 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 18 × 49 = 882,
42/18 = 42 × 49/18 × 49 = 2058/882 - Likewise, for the 2nd fraction, since 49 × 18 = 882,
45/49 = 45 × 18/49 × 18 = 810/882 - Subtract the two like fractions:
2058/882 - 810/882 = 2058 - 810/882 = 1248/882 - After reducing the fraction, the answer is 208/147
- In mixed form: 161/147
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18-45/49 42/18-90/49 42/36-45/49 42/18-45/98 42/54-45/49 42/90-45/49