Subtract 15/70 from 7/3
1st number: 2 1/3, 2nd number: 15/70
7/3 - 15/70 is 89/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 3 × 70 = 210,
7/3 = 7 × 70/3 × 70 = 490/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
15/70 = 15 × 3/70 × 3 = 45/210 - Subtract the two like fractions:
490/210 - 45/210 = 490 - 45/210 = 445/210 - After reducing the fraction, the answer is 89/42
- In mixed form: 25/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/3-15/70 7/3-30/70 7/6-15/70 21/3-15/70 7/3-45/70 7/9-15/70 35/3-15/70 7/3-75/70 7/15-15/70 49/3-15/70 7/21-15/70