Add 42/28 and 45/54
1st number: 1 14/28, 2nd number: 45/54
42/28 + 45/54 is 7/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 28 × 27 = 756,
42/28 = 42 × 27/28 × 27 = 1134/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
45/54 = 45 × 14/54 × 14 = 630/756 - Add the two like fractions:
1134/756 + 630/756 = 1134 + 630/756 = 1764/756 - 1764/756 simplified gives 7/3
- So, 42/28 + 45/54 = 7/3
In mixed form: 21/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/28+45/54 42/28+90/54 42/56+45/54 42/84+45/54