Add 72/8 and 18/28
1st number: 9 0/8, 2nd number: 18/28
72/8 + 18/28 is 135/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 28 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
72/8 = 72 × 7/8 × 7 = 504/56 - Likewise, for the 2nd fraction, since 28 × 2 = 56,
18/28 = 18 × 2/28 × 2 = 36/56 - Add the two like fractions:
504/56 + 36/56 = 504 + 36/56 = 540/56 - 540/56 simplified gives 135/14
- So, 72/8 + 18/28 = 135/14
In mixed form: 99/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/8+36/28 72/16+18/28 72/8+18/56 72/8+54/28 72/24+18/28 72/8+18/84 72/8+90/28 72/40+18/28 72/56+18/28