Subtract 42/8 from 2/70
1st number: 2/70, 2nd number: 5 2/8
2/70 - 42/8 is -731/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 8 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
2/70 = 2 × 4/70 × 4 = 8/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
42/8 = 42 × 35/8 × 35 = 1470/280 - Subtract the two like fractions:
8/280 - 1470/280 = 8 - 1470/280 = -1462/280 - After reducing the fraction, the answer is -731/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/70-42/8 2/70-84/8 2/70-42/16 6/70-42/8 2/70-42/24 10/70-42/8 2/70-42/40 14/70-42/8 2/70-42/56