Add 70/42 and 2/10
1st number: 1 28/42, 2nd number: 2/10
70/42 + 2/10 is 28/15.
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,
70/42 = 70 × 5/42 × 5 = 350/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
2/10 = 2 × 21/10 × 21 = 42/210 - Add the two like fractions:
350/210 + 42/210 = 350 + 42/210 = 392/210 - 392/210 simplified gives 28/15
- So, 70/42 + 2/10 = 28/15
In mixed form: 113/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42+4/10 70/84+2/10 70/42+2/20 70/42+6/10 70/42+2/30 70/42+2/50 70/42+14/10 70/42+2/70