Add 84/8 and 15/20
1st number: 10 4/8, 2nd number: 15/20
84/8 + 15/20 is 45/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
84/8 = 84 × 5/8 × 5 = 420/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
15/20 = 15 × 2/20 × 2 = 30/40 - Add the two like fractions:
420/40 + 30/40 = 420 + 30/40 = 450/40 - 450/40 simplified gives 45/4
- So, 84/8 + 15/20 = 45/4
In mixed form: 111/4
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