Add 32/20 and 42/84
1st number: 1 12/20, 2nd number: 42/84
32/20 + 42/84 is 21/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
32/20 = 32 × 21/20 × 21 = 672/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
42/84 = 42 × 5/84 × 5 = 210/420 - Add the two like fractions:
672/420 + 210/420 = 672 + 210/420 = 882/420 - 882/420 simplified gives 21/10
- So, 32/20 + 42/84 = 21/10
In mixed form: 21/10
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