Add 54/14 and 28/90
1st number: 3 12/14, 2nd number: 28/90
54/14 + 28/90 is 1313/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
54/14 = 54 × 45/14 × 45 = 2430/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
28/90 = 28 × 7/90 × 7 = 196/630 - Add the two like fractions:
2430/630 + 196/630 = 2430 + 196/630 = 2626/630 - 2626/630 simplified gives 1313/315
- So, 54/14 + 28/90 = 1313/315
In mixed form: 453/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/14+56/90 54/28+28/90 54/14+84/90 54/42+28/90 54/70+28/90 54/98+28/90