Subtract 40/70 from 28/9
1st number: 3 1/9, 2nd number: 40/70
28/9 - 40/70 is 160/63.
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,
28/9 = 28 × 70/9 × 70 = 1960/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
40/70 = 40 × 9/70 × 9 = 360/630 - Subtract the two like fractions:
1960/630 - 360/630 = 1960 - 360/630 = 1600/630 - After reducing the fraction, the answer is 160/63
- In mixed form: 234/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/9-40/70 28/9-80/70 28/18-40/70 84/9-40/70 28/27-40/70 28/45-40/70 28/63-40/70