Add 14/42 and 54/63
14/42 + 54/63 is 25/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
14/42 = 14 × 3/42 × 3 = 42/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
54/63 = 54 × 2/63 × 2 = 108/126 - Add the two like fractions:
42/126 + 108/126 = 42 + 108/126 = 150/126 - 150/126 simplified gives 25/21
- So, 14/42 + 54/63 = 25/21
In mixed form: 14/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/42+54/63 14/84+54/63 70/42+54/63 98/42+54/63