Add 4/70 and 30/42
4/70 + 30/42 is 27/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
4/70 = 4 × 3/70 × 3 = 12/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
30/42 = 30 × 5/42 × 5 = 150/210 - Add the two like fractions:
12/210 + 150/210 = 12 + 150/210 = 162/210 - 162/210 simplified gives 27/35
- So, 4/70 + 30/42 = 27/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/70+30/42 4/70+60/42 4/70+30/84 12/70+30/42 4/70+90/42 20/70+30/42 28/70+30/42