Add 60/9 and 30/40
1st number: 6 6/9, 2nd number: 30/40
60/9 + 30/40 is 89/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 9 × 40 = 360,
60/9 = 60 × 40/9 × 40 = 2400/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
30/40 = 30 × 9/40 × 9 = 270/360 - Add the two like fractions:
2400/360 + 270/360 = 2400 + 270/360 = 2670/360 - 2670/360 simplified gives 89/12
- So, 60/9 + 30/40 = 89/12
In mixed form: 75/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/9+60/40 60/18+30/40 60/9+30/80 60/9+90/40 60/27+30/40 60/45+30/40 60/63+30/40