Subtract 42/8 from 49/9
1st number: 5 4/9, 2nd number: 5 2/8
49/9 - 42/8 is 7/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 9 × 8 = 72,
49/9 = 49 × 8/9 × 8 = 392/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
42/8 = 42 × 9/8 × 9 = 378/72 - Subtract the two like fractions:
392/72 - 378/72 = 392 - 378/72 = 14/72 - After reducing the fraction, the answer is 7/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/9-42/8 49/9-84/8 49/18-42/8 49/9-42/16 49/27-42/8 49/9-42/24 49/45-42/8 49/9-42/40 49/63-42/8 49/9-42/56