Subtract 42/9 from 45/35
1st number: 1 10/35, 2nd number: 4 6/9
45/35 - 42/9 is -71/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 9 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 35 × 9 = 315,
45/35 = 45 × 9/35 × 9 = 405/315 - Likewise, for the 2nd fraction, since 9 × 35 = 315,
42/9 = 42 × 35/9 × 35 = 1470/315 - Subtract the two like fractions:
405/315 - 1470/315 = 405 - 1470/315 = -1065/315 - After reducing the fraction, the answer is -71/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/35-42/9 45/35-84/9 45/70-42/9 45/35-42/18 45/35-42/27 45/35-42/45 45/35-42/63