Add 18/70 and 20/84
18/70 + 20/84 is 52/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
18/70 = 18 × 6/70 × 6 = 108/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
20/84 = 20 × 5/84 × 5 = 100/420 - Add the two like fractions:
108/420 + 100/420 = 108 + 100/420 = 208/420 - 208/420 simplified gives 52/105
- So, 18/70 + 20/84 = 52/105
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