Add 45/4 and 84/28
1st number: 11 1/4, 2nd number: 3 0/28
45/4 + 84/28 is 57/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
45/4 = 45 × 7/4 × 7 = 315/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
84/28 = 84 × 1/28 × 1 = 84/28 - Add the two like fractions:
315/28 + 84/28 = 315 + 84/28 = 399/28 - 399/28 simplified gives 57/4
- So, 45/4 + 84/28 = 57/4
In mixed form: 141/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4+84/28 45/8+84/28 45/4+84/56 45/12+84/28 45/20+84/28 45/28+84/28