Add 72/24 and 84/45
1st number: 3 0/24, 2nd number: 1 39/45
72/24 + 84/45 is 73/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 24 × 15 = 360,
72/24 = 72 × 15/24 × 15 = 1080/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
84/45 = 84 × 8/45 × 8 = 672/360 - Add the two like fractions:
1080/360 + 672/360 = 1080 + 672/360 = 1752/360 - 1752/360 simplified gives 73/15
- So, 72/24 + 84/45 = 73/15
In mixed form: 413/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/48+84/45 72/24+84/90