Add 90/45 and 14/28
1st number: 2 0/45, 2nd number: 14/28
90/45 + 14/28 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 28 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 45 × 28 = 1260,
90/45 = 90 × 28/45 × 28 = 2520/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
14/28 = 14 × 45/28 × 45 = 630/1260 - Add the two like fractions:
2520/1260 + 630/1260 = 2520 + 630/1260 = 3150/1260 - 3150/1260 simplified gives 5/2
- So, 90/45 + 14/28 = 5/2
In mixed form: 21/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/45+14/56 90/45+42/28 90/45+14/84 90/45+70/28 90/45+98/28