Add 75/30 and 9/12
1st number: 2 15/30, 2nd number: 9/12
75/30 + 9/12 is 13/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
75/30 = 75 × 2/30 × 2 = 150/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
9/12 = 9 × 5/12 × 5 = 45/60 - Add the two like fractions:
150/60 + 45/60 = 150 + 45/60 = 195/60 - 195/60 simplified gives 13/4
- So, 75/30 + 9/12 = 13/4
In mixed form: 31/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/30+18/12 75/60+9/12 75/30+9/24 75/30+27/12 75/90+9/12 75/30+9/36 75/30+45/12 75/30+9/60 75/30+63/12 75/30+9/84