Add 12/42 and 50/63
12/42 + 50/63 is 68/63.
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,
12/42 = 12 × 3/42 × 3 = 36/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
50/63 = 50 × 2/63 × 2 = 100/126 - Add the two like fractions:
36/126 + 100/126 = 36 + 100/126 = 136/126 - 136/126 simplified gives 68/63
- So, 12/42 + 50/63 = 68/63
In mixed form: 15/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/42+50/63 12/84+50/63 36/42+50/63 60/42+50/63 84/42+50/63