Add 12/30 and 5/15
12/30 + 5/15 is 11/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
12/30 = 12 × 1/30 × 1 = 12/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
5/15 = 5 × 2/15 × 2 = 10/30 - Add the two like fractions:
12/30 + 10/30 = 12 + 10/30 = 22/30 - 22/30 simplified gives 11/15
- So, 12/30 + 5/15 = 11/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/30+5/15 12/30+10/15 12/60+5/15 12/30+5/30 36/30+5/15 12/90+5/15 12/30+5/45 60/30+5/15 12/30+25/15 12/30+5/75 84/30+5/15 12/30+35/15