Add 70/4 and 40/7
1st number: 17 2/4, 2nd number: 5 5/7
70/4 + 40/7 is 325/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
70/4 = 70 × 7/4 × 7 = 490/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
40/7 = 40 × 4/7 × 4 = 160/28 - Add the two like fractions:
490/28 + 160/28 = 490 + 160/28 = 650/28 - 650/28 simplified gives 325/14
- So, 70/4 + 40/7 = 325/14
In mixed form: 233/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/4+80/7 70/8+40/7 70/4+40/14 70/12+40/7 70/4+40/21 70/20+40/7 70/4+40/35 70/28+40/7 70/4+40/49