Subtract 42/35 from 28/18
1st number: 1 10/18, 2nd number: 1 7/35
28/18 - 42/35 is 16/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 35 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
28/18 = 28 × 35/18 × 35 = 980/630 - Likewise, for the 2nd fraction, since 35 × 18 = 630,
42/35 = 42 × 18/35 × 18 = 756/630 - Subtract the two like fractions:
980/630 - 756/630 = 980 - 756/630 = 224/630 - After reducing the fraction, the answer is 16/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/18-42/35 28/18-84/35 28/36-42/35 28/18-42/70 84/18-42/35 28/54-42/35 28/90-42/35