Subtract 70/30 from 40/14
1st number: 2 12/14, 2nd number: 2 10/30
40/14 - 70/30 is 11/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
40/14 = 40 × 15/14 × 15 = 600/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
70/30 = 70 × 7/30 × 7 = 490/210 - Subtract the two like fractions:
600/210 - 490/210 = 600 - 490/210 = 110/210 - After reducing the fraction, the answer is 11/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/14-70/30 40/28-70/30 40/14-70/60 40/42-70/30 40/14-70/90 40/70-70/30 40/98-70/30