Add 98/21 and 36/20
1st number: 4 14/21, 2nd number: 1 16/20
98/21 + 36/20 is 97/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
98/21 = 98 × 20/21 × 20 = 1960/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
36/20 = 36 × 21/20 × 21 = 756/420 - Add the two like fractions:
1960/420 + 756/420 = 1960 + 756/420 = 2716/420 - 2716/420 simplified gives 97/15
- So, 98/21 + 36/20 = 97/15
In mixed form: 67/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/21+72/20 98/42+36/20 98/21+36/40 98/63+36/20 98/21+36/60