Add 42/84 and 10/5
1st number: 42/84, 2nd number: 2 0/5
42/84 + 10/5 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 5 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
42/84 = 42 × 5/84 × 5 = 210/420 - Likewise, for the 2nd fraction, since 5 × 84 = 420,
10/5 = 10 × 84/5 × 84 = 840/420 - Add the two like fractions:
210/420 + 840/420 = 210 + 840/420 = 1050/420 - 1050/420 simplified gives 5/2
- So, 42/84 + 10/5 = 5/2
In mixed form: 21/2
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