Add 9/30 and 3/4
9/30 + 3/4 is 21/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 4 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
9/30 = 9 × 2/30 × 2 = 18/60 - Likewise, for the 2nd fraction, since 4 × 15 = 60,
3/4 = 3 × 15/4 × 15 = 45/60 - Add the two like fractions:
18/60 + 45/60 = 18 + 45/60 = 63/60 - 63/60 simplified gives 21/20
- So, 9/30 + 3/4 = 21/20
In mixed form: 11/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/30+3/4 9/30+6/4 9/60+3/4 9/30+3/8 27/30+3/4 9/30+9/4 9/90+3/4 9/30+3/12 45/30+3/4 9/30+15/4 9/30+3/20 63/30+3/4 9/30+21/4 9/30+3/28