Add 63/42 and 4/10
1st number: 1 21/42, 2nd number: 4/10
63/42 + 4/10 is 19/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 10 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 10 × 21 = 210,
4/10 = 4 × 21/10 × 21 = 84/210 - Add the two like fractions:
315/210 + 84/210 = 315 + 84/210 = 399/210 - 399/210 simplified gives 19/10
- So, 63/42 + 4/10 = 19/10
In mixed form: 19/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/42+8/10 63/84+4/10 63/42+4/20 63/42+12/10 63/42+4/30 63/42+20/10 63/42+4/50 63/42+28/10 63/42+4/70