Add 8/90 and 45/28
1st number: 8/90, 2nd number: 1 17/28
8/90 + 45/28 is 2137/1260.
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,
8/90 = 8 × 14/90 × 14 = 112/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
45/28 = 45 × 45/28 × 45 = 2025/1260 - Add the two like fractions:
112/1260 + 2025/1260 = 112 + 2025/1260 = 2137/1260 - So, 8/90 + 45/28 = 2137/1260
In mixed form: 1877/1260
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/90+45/28 8/90+90/28 8/90+45/56 24/90+45/28 8/90+45/84 40/90+45/28 56/90+45/28