Subtract 42/4 from 35/18
1st number: 1 17/18, 2nd number: 10 2/4
35/18 - 42/4 is -77/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
35/18 = 35 × 2/18 × 2 = 70/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
42/4 = 42 × 9/4 × 9 = 378/36 - Subtract the two like fractions:
70/36 - 378/36 = 70 - 378/36 = -308/36 - After reducing the fraction, the answer is -77/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18-42/4 35/18-84/4 35/36-42/4 35/18-42/8 35/54-42/4 35/18-42/12 35/90-42/4 35/18-42/20 35/18-42/28