Subtract 42/70 from 9/3
1st number: 3 0/3, 2nd number: 42/70
9/3 - 42/70 is 12/5.
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,
9/3 = 9 × 70/3 × 70 = 630/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
42/70 = 42 × 3/70 × 3 = 126/210 - Subtract the two like fractions:
630/210 - 126/210 = 630 - 126/210 = 504/210 - After reducing the fraction, the answer is 12/5
- In mixed form: 22/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/3-42/70 9/3-84/70 9/6-42/70 27/3-42/70 45/3-42/70 9/15-42/70 63/3-42/70 9/21-42/70