Add 18/2 and 45/42
1st number: 9 0/2, 2nd number: 1 3/42
18/2 + 45/42 is 141/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
18/2 = 18 × 21/2 × 21 = 378/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
45/42 = 45 × 1/42 × 1 = 45/42 - Add the two like fractions:
378/42 + 45/42 = 378 + 45/42 = 423/42 - 423/42 simplified gives 141/14
- So, 18/2 + 45/42 = 141/14
In mixed form: 101/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/2+45/42 18/2+90/42 18/4+45/42 18/2+45/84 54/2+45/42 18/6+45/42 90/2+45/42 18/10+45/42 18/14+45/42