Add 45/3 and 42/8
1st number: 15 0/3, 2nd number: 5 2/8
45/3 + 42/8 is 81/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 3 × 8 = 24,
45/3 = 45 × 8/3 × 8 = 360/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
42/8 = 42 × 3/8 × 3 = 126/24 - Add the two like fractions:
360/24 + 126/24 = 360 + 126/24 = 486/24 - 486/24 simplified gives 81/4
- So, 45/3 + 42/8 = 81/4
In mixed form: 201/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/3+42/8 45/3+84/8 45/6+42/8 45/3+42/16 45/9+42/8 45/3+42/24 45/15+42/8 45/3+42/40 45/21+42/8 45/3+42/56