Add 42/2 and 45/28
1st number: 21 0/2, 2nd number: 1 17/28
42/2 + 45/28 is 633/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 2 × 14 = 28,
42/2 = 42 × 14/2 × 14 = 588/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
45/28 = 45 × 1/28 × 1 = 45/28 - Add the two like fractions:
588/28 + 45/28 = 588 + 45/28 = 633/28 - So, 42/2 + 45/28 = 633/28
In mixed form: 2217/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2+45/28 42/2+90/28 42/4+45/28 42/2+45/56 42/6+45/28 42/2+45/84 42/10+45/28 42/14+45/28