Add 15/10 and 81/4
1st number: 1 5/10, 2nd number: 20 1/4
15/10 + 81/4 is 87/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 4 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
15/10 = 15 × 2/10 × 2 = 30/20 - Likewise, for the 2nd fraction, since 4 × 5 = 20,
81/4 = 81 × 5/4 × 5 = 405/20 - Add the two like fractions:
30/20 + 405/20 = 30 + 405/20 = 435/20 - 435/20 simplified gives 87/4
- So, 15/10 + 81/4 = 87/4
In mixed form: 213/4
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