Subtract 84/9 from 42/4
1st number: 10 2/4, 2nd number: 9 3/9
42/4 - 84/9 is 7/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
42/4 = 42 × 9/4 × 9 = 378/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
84/9 = 84 × 4/9 × 4 = 336/36 - Subtract the two like fractions:
378/36 - 336/36 = 378 - 336/36 = 42/36 - After reducing the fraction, the answer is 7/6
- In mixed form: 11/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/4-84/9 42/8-84/9 42/4-84/18 42/12-84/9 42/4-84/27 42/20-84/9 42/4-84/45 42/28-84/9 42/4-84/63