Add 45/4 and 12/15
1st number: 11 1/4, 2nd number: 12/15
45/4 + 12/15 is 241/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
45/4 = 45 × 15/4 × 15 = 675/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
12/15 = 12 × 4/15 × 4 = 48/60 - Add the two like fractions:
675/60 + 48/60 = 675 + 48/60 = 723/60 - 723/60 simplified gives 241/20
- So, 45/4 + 12/15 = 241/20
In mixed form: 121/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4+12/15 45/4+24/15 45/8+12/15 45/4+12/30 45/4+36/15 45/12+12/15 45/4+12/45 45/4+60/15 45/20+12/15 45/4+12/75 45/4+84/15 45/28+12/15