Add 42/84 and 20/50
42/84 + 20/50 is 9/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 50 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 84 × 25 = 2100,
42/84 = 42 × 25/84 × 25 = 1050/2100 - Likewise, for the 2nd fraction, since 50 × 42 = 2100,
20/50 = 20 × 42/50 × 42 = 840/2100 - Add the two like fractions:
1050/2100 + 840/2100 = 1050 + 840/2100 = 1890/2100 - 1890/2100 simplified gives 9/10
- So, 42/84 + 20/50 = 9/10
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