Subtract 28/70 from 42/8
1st number: 5 2/8, 2nd number: 28/70
42/8 - 28/70 is 97/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 8 × 35 = 280,
42/8 = 42 × 35/8 × 35 = 1470/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
28/70 = 28 × 4/70 × 4 = 112/280 - Subtract the two like fractions:
1470/280 - 112/280 = 1470 - 112/280 = 1358/280 - After reducing the fraction, the answer is 97/20
- In mixed form: 417/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/8-28/70 42/8-56/70 42/16-28/70 42/8-84/70 42/24-28/70 42/40-28/70 42/56-28/70