Add 14/21 and 25/70
14/21 + 25/70 is 43/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
14/21 = 14 × 10/21 × 10 = 140/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
25/70 = 25 × 3/70 × 3 = 75/210 - Add the two like fractions:
140/210 + 75/210 = 140 + 75/210 = 215/210 - 215/210 simplified gives 43/42
- So, 14/21 + 25/70 = 43/42
In mixed form: 11/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/21+25/70 14/21+50/70 14/42+25/70 42/21+25/70 14/21+75/70 14/63+25/70 70/21+25/70 98/21+25/70