Subtract 42/28 from 3/70
1st number: 3/70, 2nd number: 1 14/28
3/70 - 42/28 is -51/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
3/70 = 3 × 2/70 × 2 = 6/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
42/28 = 42 × 5/28 × 5 = 210/140 - Subtract the two like fractions:
6/140 - 210/140 = 6 - 210/140 = -204/140 - After reducing the fraction, the answer is -51/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/70-42/28 3/70-84/28 3/70-42/56 9/70-42/28 3/70-42/84 15/70-42/28 21/70-42/28