Add 18/4 and 54/28
1st number: 4 2/4, 2nd number: 1 26/28
18/4 + 54/28 is 45/7.
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,
18/4 = 18 × 7/4 × 7 = 126/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
54/28 = 54 × 1/28 × 1 = 54/28 - Add the two like fractions:
126/28 + 54/28 = 126 + 54/28 = 180/28 - 180/28 simplified gives 45/7
- So, 18/4 + 54/28 = 45/7
In mixed form: 63/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/4+54/28 18/8+54/28 18/4+54/56 54/4+54/28 18/12+54/28 18/4+54/84 90/4+54/28 18/20+54/28 18/28+54/28