Add 63/42 and 10/28
1st number: 1 21/42, 2nd number: 10/28
63/42 + 10/28 is 13/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
63/42 = 63 × 2/42 × 2 = 126/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
10/28 = 10 × 3/28 × 3 = 30/84 - Add the two like fractions:
126/84 + 30/84 = 126 + 30/84 = 156/84 - 156/84 simplified gives 13/7
- So, 63/42 + 10/28 = 13/7
In mixed form: 16/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/42+20/28 63/84+10/28 63/42+10/56 63/42+30/28 63/42+10/84 63/42+50/28 63/42+70/28