Add 12/30 and 28/70
12/30 + 28/70 is 4/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
12/30 = 12 × 7/30 × 7 = 84/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
28/70 = 28 × 3/70 × 3 = 84/210 - Add the two like fractions:
84/210 + 84/210 = 84 + 84/210 = 168/210 - 168/210 simplified gives 4/5
- So, 12/30 + 28/70 = 4/5
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