Add 81/4 and 70/18
1st number: 20 1/4, 2nd number: 3 16/18
81/4 + 70/18 is 869/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
81/4 = 81 × 9/4 × 9 = 729/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
70/18 = 70 × 2/18 × 2 = 140/36 - Add the two like fractions:
729/36 + 140/36 = 729 + 140/36 = 869/36 - So, 81/4 + 70/18 = 869/36
In mixed form: 245/36
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