Add 50/90 and 45/4
1st number: 50/90, 2nd number: 11 1/4
50/90 + 45/4 is 425/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
50/90 = 50 × 2/90 × 2 = 100/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
45/4 = 45 × 45/4 × 45 = 2025/180 - Add the two like fractions:
100/180 + 2025/180 = 100 + 2025/180 = 2125/180 - 2125/180 simplified gives 425/36
- So, 50/90 + 45/4 = 425/36
In mixed form: 1129/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/90+90/4 50/90+45/8 50/90+45/12 50/90+45/20 50/90+45/28