Add 60/45 and 84/72
1st number: 1 15/45, 2nd number: 1 12/72
60/45 + 84/72 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
60/45 = 60 × 8/45 × 8 = 480/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
84/72 = 84 × 5/72 × 5 = 420/360 - Add the two like fractions:
480/360 + 420/360 = 480 + 420/360 = 900/360 - 900/360 simplified gives 5/2
- So, 60/45 + 84/72 = 5/2
In mixed form: 21/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/90+84/72