Add 98/21 and 4/20
1st number: 4 14/21, 2nd number: 4/20
98/21 + 4/20 is 73/15.
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,
4/20 = 4 × 21/20 × 21 = 84/420 - Add the two like fractions:
1960/420 + 84/420 = 1960 + 84/420 = 2044/420 - 2044/420 simplified gives 73/15
- So, 98/21 + 4/20 = 73/15
In mixed form: 413/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/21+8/20 98/42+4/20 98/21+4/40 98/21+12/20 98/63+4/20 98/21+4/60 98/21+28/20