Add 40/60 and 98/21
1st number: 40/60, 2nd number: 4 14/21
40/60 + 98/21 is 16/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 21 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
40/60 = 40 × 7/60 × 7 = 280/420 - Likewise, for the 2nd fraction, since 21 × 20 = 420,
98/21 = 98 × 20/21 × 20 = 1960/420 - Add the two like fractions:
280/420 + 1960/420 = 280 + 1960/420 = 2240/420 - 2240/420 simplified gives 16/3
- So, 40/60 + 98/21 = 16/3
In mixed form: 51/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/60+98/21 40/60+98/42 40/60+98/63