Subtract 42/9 from 40/36
1st number: 1 4/36, 2nd number: 4 6/9
40/36 - 42/9 is -32/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 36 × 1 = 36,
40/36 = 40 × 1/36 × 1 = 40/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
42/9 = 42 × 4/9 × 4 = 168/36 - Subtract the two like fractions:
40/36 - 168/36 = 40 - 168/36 = -128/36 - After reducing the fraction, the answer is -32/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/36-42/9 40/36-84/9 40/72-42/9 40/36-42/18 40/36-42/27 40/36-42/45 40/36-42/63