Add 72/30 and 18/49
1st number: 2 12/30, 2nd number: 18/49
72/30 + 18/49 is 678/245.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 49 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 30 × 49 = 1470,
72/30 = 72 × 49/30 × 49 = 3528/1470 - Likewise, for the 2nd fraction, since 49 × 30 = 1470,
18/49 = 18 × 30/49 × 30 = 540/1470 - Add the two like fractions:
3528/1470 + 540/1470 = 3528 + 540/1470 = 4068/1470 - 4068/1470 simplified gives 678/245
- So, 72/30 + 18/49 = 678/245
In mixed form: 2188/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/30+36/49 72/60+18/49 72/30+18/98 72/30+54/49 72/90+18/49 72/30+90/49