Add 70/27 and 21/7
1st number: 2 16/27, 2nd number: 3 0/7
70/27 + 21/7 is 151/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 7 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
70/27 = 70 × 7/27 × 7 = 490/189 - Likewise, for the 2nd fraction, since 7 × 27 = 189,
21/7 = 21 × 27/7 × 27 = 567/189 - Add the two like fractions:
490/189 + 567/189 = 490 + 567/189 = 1057/189 - 1057/189 simplified gives 151/27
- So, 70/27 + 21/7 = 151/27
In mixed form: 516/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/27+42/7 70/54+21/7 70/27+21/14 70/27+63/7 70/81+21/7 70/27+21/35 70/27+21/49