Add 70/14 and 40/90
1st number: 5 0/14, 2nd number: 40/90
70/14 + 40/90 is 49/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
70/14 = 70 × 45/14 × 45 = 3150/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
40/90 = 40 × 7/90 × 7 = 280/630 - Add the two like fractions:
3150/630 + 280/630 = 3150 + 280/630 = 3430/630 - 3430/630 simplified gives 49/9
- So, 70/14 + 40/90 = 49/9
In mixed form: 54/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/14+80/90 70/28+40/90 70/42+40/90 70/98+40/90