Add 63/42 and 35/5
1st number: 1 21/42, 2nd number: 7 0/5
63/42 + 35/5 is 17/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 5 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
63/42 = 63 × 5/42 × 5 = 315/210 - Likewise, for the 2nd fraction, since 5 × 42 = 210,
35/5 = 35 × 42/5 × 42 = 1470/210 - Add the two like fractions:
315/210 + 1470/210 = 315 + 1470/210 = 1785/210 - 1785/210 simplified gives 17/2
- So, 63/42 + 35/5 = 17/2
In mixed form: 81/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/42+70/5 63/84+35/5 63/42+35/10 63/42+35/15 63/42+35/25