Add 42/27 and 40/63
1st number: 1 15/27, 2nd number: 40/63
42/27 + 40/63 is 46/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 63 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
42/27 = 42 × 7/27 × 7 = 294/189 - Likewise, for the 2nd fraction, since 63 × 3 = 189,
40/63 = 40 × 3/63 × 3 = 120/189 - Add the two like fractions:
294/189 + 120/189 = 294 + 120/189 = 414/189 - 414/189 simplified gives 46/21
- So, 42/27 + 40/63 = 46/21
In mixed form: 24/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/27+40/63 42/27+80/63 42/54+40/63 42/81+40/63