Add 4/15 and 30/45
4/15 + 30/45 is 14/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
4/15 = 4 × 3/15 × 3 = 12/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
30/45 = 30 × 1/45 × 1 = 30/45 - Add the two like fractions:
12/45 + 30/45 = 12 + 30/45 = 42/45 - 42/45 simplified gives 14/15
- So, 4/15 + 30/45 = 14/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/15+30/45 4/15+60/45 4/30+30/45 4/15+30/90 12/15+30/45 4/15+90/45 4/45+30/45 20/15+30/45 4/75+30/45 28/15+30/45