Add 25/18 and 63/42
1st number: 1 7/18, 2nd number: 1 21/42
25/18 + 63/42 is 26/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
25/18 = 25 × 7/18 × 7 = 175/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
63/42 = 63 × 3/42 × 3 = 189/126 - Add the two like fractions:
175/126 + 189/126 = 175 + 189/126 = 364/126 - 364/126 simplified gives 26/9
- So, 25/18 + 63/42 = 26/9
In mixed form: 28/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/18+63/42 25/36+63/42 25/18+63/84 75/18+63/42 25/54+63/42 25/90+63/42