Add 21/6 and 45/28
1st number: 3 3/6, 2nd number: 1 17/28
21/6 + 45/28 is 143/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 6 × 14 = 84,
21/6 = 21 × 14/6 × 14 = 294/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
45/28 = 45 × 3/28 × 3 = 135/84 - Add the two like fractions:
294/84 + 135/84 = 294 + 135/84 = 429/84 - 429/84 simplified gives 143/28
- So, 21/6 + 45/28 = 143/28
In mixed form: 53/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/6+45/28 21/6+90/28 21/12+45/28 21/6+45/56 63/6+45/28 21/18+45/28 21/6+45/84 21/30+45/28 21/42+45/28