Add 63/42 and 3/70
1st number: 1 21/42, 2nd number: 3/70
63/42 + 3/70 is 54/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 70 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 70 × 3 = 210,
3/70 = 3 × 3/70 × 3 = 9/210 - Add the two like fractions:
315/210 + 9/210 = 315 + 9/210 = 324/210 - 324/210 simplified gives 54/35
- So, 63/42 + 3/70 = 54/35
In mixed form: 119/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/42+6/70 63/84+3/70 63/42+9/70 63/42+15/70 63/42+21/70