Subtract 6/70 from 18/4
1st number: 4 2/4, 2nd number: 6/70
18/4 - 6/70 is 309/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 4 × 35 = 140,
18/4 = 18 × 35/4 × 35 = 630/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
6/70 = 6 × 2/70 × 2 = 12/140 - Subtract the two like fractions:
630/140 - 12/140 = 630 - 12/140 = 618/140 - After reducing the fraction, the answer is 309/70
- In mixed form: 429/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/4-6/70 18/4-12/70 18/8-6/70 54/4-6/70 18/4-18/70 18/12-6/70 90/4-6/70 18/4-30/70 18/20-6/70 18/4-42/70 18/28-6/70