Add 15/4 and 54/56
1st number: 3 3/4, 2nd number: 54/56
15/4 + 54/56 is 33/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 4 × 14 = 56,
15/4 = 15 × 14/4 × 14 = 210/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
54/56 = 54 × 1/56 × 1 = 54/56 - Add the two like fractions:
210/56 + 54/56 = 210 + 54/56 = 264/56 - 264/56 simplified gives 33/7
- So, 15/4 + 54/56 = 33/7
In mixed form: 45/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/4+54/56 15/8+54/56 45/4+54/56 15/12+54/56 75/4+54/56 15/20+54/56 15/28+54/56