Add 16/27 and 7/21
16/27 + 7/21 is 25/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 21 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
16/27 = 16 × 7/27 × 7 = 112/189 - Likewise, for the 2nd fraction, since 21 × 9 = 189,
7/21 = 7 × 9/21 × 9 = 63/189 - Add the two like fractions:
112/189 + 63/189 = 112 + 63/189 = 175/189 - 175/189 simplified gives 25/27
- So, 16/27 + 7/21 = 25/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/27+7/21 16/27+14/21 16/54+7/21 16/27+7/42 48/27+7/21 16/81+7/21 16/27+7/63 80/27+7/21 16/27+35/21 16/27+49/21