Add 70/72 and 30/7
1st number: 70/72, 2nd number: 4 2/7
70/72 + 30/7 is 1325/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 7 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
70/72 = 70 × 7/72 × 7 = 490/504 - Likewise, for the 2nd fraction, since 7 × 72 = 504,
30/7 = 30 × 72/7 × 72 = 2160/504 - Add the two like fractions:
490/504 + 2160/504 = 490 + 2160/504 = 2650/504 - 2650/504 simplified gives 1325/252
- So, 70/72 + 30/7 = 1325/252
In mixed form: 565/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/72+60/7 70/72+30/14 70/72+90/7 70/72+30/21 70/72+30/35 70/72+30/49