Add 98/21 and 7/20
1st number: 4 14/21, 2nd number: 7/20
98/21 + 7/20 is 301/60.
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,
7/20 = 7 × 21/20 × 21 = 147/420 - Add the two like fractions:
1960/420 + 147/420 = 1960 + 147/420 = 2107/420 - 2107/420 simplified gives 301/60
- So, 98/21 + 7/20 = 301/60
In mixed form: 51/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/21+14/20 98/42+7/20 98/21+7/40 98/21+21/20 98/63+7/20 98/21+7/60 98/21+35/20 98/21+49/20