Add 1/90 and 36/28
1st number: 1/90, 2nd number: 1 8/28
1/90 + 36/28 is 817/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 28 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 90 × 14 = 1260,
1/90 = 1 × 14/90 × 14 = 14/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
36/28 = 36 × 45/28 × 45 = 1620/1260 - Add the two like fractions:
14/1260 + 1620/1260 = 14 + 1620/1260 = 1634/1260 - 1634/1260 simplified gives 817/630
- So, 1/90 + 36/28 = 817/630
In mixed form: 1187/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/90+36/28 1/90+72/28 1/90+36/56 3/90+36/28 1/90+36/84 5/90+36/28 7/90+36/28