Add 72/4 and 30/7
1st number: 18 0/4, 2nd number: 4 2/7
72/4 + 30/7 is 156/7.
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,
72/4 = 72 × 7/4 × 7 = 504/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
30/7 = 30 × 4/7 × 4 = 120/28 - Add the two like fractions:
504/28 + 120/28 = 504 + 120/28 = 624/28 - 624/28 simplified gives 156/7
- So, 72/4 + 30/7 = 156/7
In mixed form: 222/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/4+60/7 72/8+30/7 72/4+30/14 72/4+90/7 72/12+30/7 72/4+30/21 72/20+30/7 72/4+30/35 72/28+30/7 72/4+30/49