Add 16/21 and 12/70
16/21 + 12/70 is 14/15.
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,
16/21 = 16 × 10/21 × 10 = 160/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
12/70 = 12 × 3/70 × 3 = 36/210 - Add the two like fractions:
160/210 + 36/210 = 160 + 36/210 = 196/210 - 196/210 simplified gives 14/15
- So, 16/21 + 12/70 = 14/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/21+12/70 16/21+24/70 16/42+12/70 48/21+12/70 16/21+36/70 16/63+12/70 80/21+12/70 16/21+60/70 16/21+84/70