Add 5/84 and 90/50
1st number: 5/84, 2nd number: 1 40/50
5/84 + 90/50 is 781/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 50 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 84 × 25 = 2100,
5/84 = 5 × 25/84 × 25 = 125/2100 - Likewise, for the 2nd fraction, since 50 × 42 = 2100,
90/50 = 90 × 42/50 × 42 = 3780/2100 - Add the two like fractions:
125/2100 + 3780/2100 = 125 + 3780/2100 = 3905/2100 - 3905/2100 simplified gives 781/420
- So, 5/84 + 90/50 = 781/420
In mixed form: 1361/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/84+90/50 15/84+90/50 25/84+90/50 35/84+90/50