Add 20/84 and 15/10
1st number: 20/84, 2nd number: 1 5/10
20/84 + 15/10 is 73/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 10 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
20/84 = 20 × 5/84 × 5 = 100/420 - Likewise, for the 2nd fraction, since 10 × 42 = 420,
15/10 = 15 × 42/10 × 42 = 630/420 - Add the two like fractions:
100/420 + 630/420 = 100 + 630/420 = 730/420 - 730/420 simplified gives 73/42
- So, 20/84 + 15/10 = 73/42
In mixed form: 131/42
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