Add 70/42 and 48/30
1st number: 1 28/42, 2nd number: 1 18/30
70/42 + 48/30 is 49/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 30 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 30 × 7 = 210,
48/30 = 48 × 7/30 × 7 = 336/210 - Add the two like fractions:
350/210 + 336/210 = 350 + 336/210 = 686/210 - 686/210 simplified gives 49/15
- So, 70/42 + 48/30 = 49/15
In mixed form: 34/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42+96/30 70/84+48/30 70/42+48/60 70/42+48/90