Subtract 42/70 from 36/9
1st number: 4 0/9, 2nd number: 42/70
36/9 - 42/70 is 17/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 9 × 70 = 630,
36/9 = 36 × 70/9 × 70 = 2520/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
42/70 = 42 × 9/70 × 9 = 378/630 - Subtract the two like fractions:
2520/630 - 378/630 = 2520 - 378/630 = 2142/630 - After reducing the fraction, the answer is 17/5
- In mixed form: 32/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/9-42/70 36/9-84/70 36/18-42/70 36/27-42/70 36/45-42/70 36/63-42/70