Add 4/70 and 7/15
4/70 + 7/15 is 11/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 15 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 15 × 14 = 210,
7/15 = 7 × 14/15 × 14 = 98/210 - Add the two like fractions:
12/210 + 98/210 = 12 + 98/210 = 110/210 - 110/210 simplified gives 11/21
- So, 4/70 + 7/15 = 11/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/70+7/15 4/70+14/15 4/70+7/30 12/70+7/15 4/70+21/15 4/70+7/45 20/70+7/15 4/70+35/15 4/70+7/75 28/70+7/15 4/70+49/15