Add 14/10 and 21/42
1st number: 1 4/10, 2nd number: 21/42
14/10 + 21/42 is 19/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
14/10 = 14 × 21/10 × 21 = 294/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
21/42 = 21 × 5/42 × 5 = 105/210 - Add the two like fractions:
294/210 + 105/210 = 294 + 105/210 = 399/210 - 399/210 simplified gives 19/10
- So, 14/10 + 21/42 = 19/10
In mixed form: 19/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/10+21/42 14/20+21/42 14/10+21/84 42/10+21/42 14/10+63/42 14/30+21/42 70/10+21/42 14/50+21/42 98/10+21/42 14/70+21/42