Add 75/21 and 14/42
1st number: 3 12/21, 2nd number: 14/42
75/21 + 14/42 is 82/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
75/21 = 75 × 2/21 × 2 = 150/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
14/42 = 14 × 1/42 × 1 = 14/42 - Add the two like fractions:
150/42 + 14/42 = 150 + 14/42 = 164/42 - 164/42 simplified gives 82/21
- So, 75/21 + 14/42 = 82/21
In mixed form: 319/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/21+28/42 75/42+14/42 75/21+14/84 75/63+14/42 75/21+70/42 75/21+98/42