Add 45/3 and 81/42
1st number: 15 0/3, 2nd number: 1 39/42
45/3 + 81/42 is 237/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 3 × 14 = 42,
45/3 = 45 × 14/3 × 14 = 630/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
81/42 = 81 × 1/42 × 1 = 81/42 - Add the two like fractions:
630/42 + 81/42 = 630 + 81/42 = 711/42 - 711/42 simplified gives 237/14
- So, 45/3 + 81/42 = 237/14
In mixed form: 1613/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/3+81/42 45/6+81/42 45/3+81/84 45/9+81/42 45/15+81/42 45/21+81/42