Add 60/72 and 90/20
1st number: 60/72, 2nd number: 4 10/20
60/72 + 90/20 is 16/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 20 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
60/72 = 60 × 5/72 × 5 = 300/360 - Likewise, for the 2nd fraction, since 20 × 18 = 360,
90/20 = 90 × 18/20 × 18 = 1620/360 - Add the two like fractions:
300/360 + 1620/360 = 300 + 1620/360 = 1920/360 - 1920/360 simplified gives 16/3
- So, 60/72 + 90/20 = 16/3
In mixed form: 51/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/72+90/40 60/72+90/60