Add 72/24 and 90/28
1st number: 3 0/24, 2nd number: 3 6/28
72/24 + 90/28 is 87/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 28 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
72/24 = 72 × 7/24 × 7 = 504/168 - Likewise, for the 2nd fraction, since 28 × 6 = 168,
90/28 = 90 × 6/28 × 6 = 540/168 - Add the two like fractions:
504/168 + 540/168 = 504 + 540/168 = 1044/168 - 1044/168 simplified gives 87/14
- So, 72/24 + 90/28 = 87/14
In mixed form: 63/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/48+90/28 72/24+90/56 72/24+90/84