Add 45/28 and 8/90
1st number: 1 17/28, 2nd number: 8/90
45/28 + 8/90 is 2137/1260.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 90 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
45/28 = 45 × 45/28 × 45 = 2025/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
8/90 = 8 × 14/90 × 14 = 112/1260 - Add the two like fractions:
2025/1260 + 112/1260 = 2025 + 112/1260 = 2137/1260 - So, 45/28 + 8/90 = 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: 90/28+8/90 45/28+16/90 45/56+8/90 45/28+24/90 45/84+8/90 45/28+40/90 45/28+56/90