Add 20/42 and 28/70
20/42 + 28/70 is 92/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
20/42 = 20 × 5/42 × 5 = 100/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
28/70 = 28 × 3/70 × 3 = 84/210 - Add the two like fractions:
100/210 + 84/210 = 100 + 84/210 = 184/210 - 184/210 simplified gives 92/105
- So, 20/42 + 28/70 = 92/105
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