Add 20/84 and 63/18
1st number: 20/84, 2nd number: 3 9/18
20/84 + 63/18 is 157/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
20/84 = 20 × 3/84 × 3 = 60/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
63/18 = 63 × 14/18 × 14 = 882/252 - Add the two like fractions:
60/252 + 882/252 = 60 + 882/252 = 942/252 - 942/252 simplified gives 157/42
- So, 20/84 + 63/18 = 157/42
In mixed form: 331/42
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