Add 90/2 and 18/28
1st number: 45 0/2, 2nd number: 18/28
90/2 + 18/28 is 639/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 2 × 14 = 28,
90/2 = 90 × 14/2 × 14 = 1260/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
18/28 = 18 × 1/28 × 1 = 18/28 - Add the two like fractions:
1260/28 + 18/28 = 1260 + 18/28 = 1278/28 - 1278/28 simplified gives 639/14
- So, 90/2 + 18/28 = 639/14
In mixed form: 459/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/2+36/28 90/4+18/28 90/2+18/56 90/2+54/28 90/6+18/28 90/2+18/84 90/2+90/28 90/10+18/28 90/14+18/28