Add 90/50 and 20/63
1st number: 1 40/50, 2nd number: 20/63
90/50 + 20/63 is 667/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 63 is 3150
Next, find the equivalent fraction of both fractional numbers with denominator 3150 - For the 1st fraction, since 50 × 63 = 3150,
90/50 = 90 × 63/50 × 63 = 5670/3150 - Likewise, for the 2nd fraction, since 63 × 50 = 3150,
20/63 = 20 × 50/63 × 50 = 1000/3150 - Add the two like fractions:
5670/3150 + 1000/3150 = 5670 + 1000/3150 = 6670/3150 - 6670/3150 simplified gives 667/315
- So, 90/50 + 20/63 = 667/315
In mixed form: 237/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/50+40/63 90/50+60/63