Add 28/70 and 14/21
28/70 + 14/21 is 16/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
28/70 = 28 × 3/70 × 3 = 84/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
14/21 = 14 × 10/21 × 10 = 140/210 - Add the two like fractions:
84/210 + 140/210 = 84 + 140/210 = 224/210 - 224/210 simplified gives 16/15
- So, 28/70 + 14/21 = 16/15
In mixed form: 11/15
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