Add 4/45 and 12/15
4/45 + 12/15 is 8/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 15 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
4/45 = 4 × 1/45 × 1 = 4/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
12/15 = 12 × 3/15 × 3 = 36/45 - Add the two like fractions:
4/45 + 36/45 = 4 + 36/45 = 40/45 - 40/45 simplified gives 8/9
- So, 4/45 + 12/15 = 8/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/45+12/15 4/45+24/15 4/90+12/15 4/45+12/30 12/45+12/15 4/45+36/15 4/45+12/45 20/45+12/15 4/45+60/15 4/45+12/75 28/45+12/15 4/45+84/15