Add 4/84 and 98/80
1st number: 4/84, 2nd number: 1 18/80
4/84 + 98/80 is 1069/840.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 84 × 20 = 1680,
4/84 = 4 × 20/84 × 20 = 80/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
98/80 = 98 × 21/80 × 21 = 2058/1680 - Add the two like fractions:
80/1680 + 2058/1680 = 80 + 2058/1680 = 2138/1680 - 2138/1680 simplified gives 1069/840
- So, 4/84 + 98/80 = 1069/840
In mixed form: 1229/840
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/84+98/80 12/84+98/80 20/84+98/80 28/84+98/80