Add 72/32 and 90/28
1st number: 2 8/32, 2nd number: 3 6/28
72/32 + 90/28 is 153/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 28 is 224
Next, find the equivalent fraction of both fractional numbers with denominator 224 - For the 1st fraction, since 32 × 7 = 224,
72/32 = 72 × 7/32 × 7 = 504/224 - Likewise, for the 2nd fraction, since 28 × 8 = 224,
90/28 = 90 × 8/28 × 8 = 720/224 - Add the two like fractions:
504/224 + 720/224 = 504 + 720/224 = 1224/224 - 1224/224 simplified gives 153/28
- So, 72/32 + 90/28 = 153/28
In mixed form: 513/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/64+90/28 72/32+90/56 72/96+90/28 72/32+90/84