Add 9/30 and 7/20
9/30 + 7/20 is 13/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 20 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 20 × 3 = 60,
7/20 = 7 × 3/20 × 3 = 21/60 - Add the two like fractions:
18/60 + 21/60 = 18 + 21/60 = 39/60 - 39/60 simplified gives 13/20
- So, 9/30 + 7/20 = 13/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/30+7/20 9/30+14/20 9/60+7/20 9/30+7/40 27/30+7/20 9/30+21/20 9/90+7/20 9/30+7/60 45/30+7/20 9/30+35/20 63/30+7/20 9/30+49/20