Add 10/42 and 25/63
10/42 + 25/63 is 40/63.
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,
10/42 = 10 × 3/42 × 3 = 30/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
25/63 = 25 × 2/63 × 2 = 50/126 - Add the two like fractions:
30/126 + 50/126 = 30 + 50/126 = 80/126 - 80/126 simplified gives 40/63
- So, 10/42 + 25/63 = 40/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/42+25/63 10/42+50/63 10/84+25/63 30/42+25/63 10/42+75/63 50/42+25/63 70/42+25/63