Add 9/42 and 48/70
9/42 + 48/70 is 9/10.
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,
9/42 = 9 × 5/42 × 5 = 45/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
48/70 = 48 × 3/70 × 3 = 144/210 - Add the two like fractions:
45/210 + 144/210 = 45 + 144/210 = 189/210 - 189/210 simplified gives 9/10
- So, 9/42 + 48/70 = 9/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/42+48/70 9/42+96/70 9/84+48/70 27/42+48/70 45/42+48/70 63/42+48/70