Add 84/72 and 72/60
1st number: 1 12/72, 2nd number: 1 12/60
84/72 + 72/60 is 71/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 60 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
84/72 = 84 × 5/72 × 5 = 420/360 - Likewise, for the 2nd fraction, since 60 × 6 = 360,
72/60 = 72 × 6/60 × 6 = 432/360 - Add the two like fractions:
420/360 + 432/360 = 420 + 432/360 = 852/360 - 852/360 simplified gives 71/30
- So, 84/72 + 72/60 = 71/30
In mixed form: 211/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: