Add 81/18 and 15/8
1st number: 4 9/18, 2nd number: 1 7/8
81/18 + 15/8 is 51/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
81/18 = 81 × 4/18 × 4 = 324/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
15/8 = 15 × 9/8 × 9 = 135/72 - Add the two like fractions:
324/72 + 135/72 = 324 + 135/72 = 459/72 - 459/72 simplified gives 51/8
- So, 81/18 + 15/8 = 51/8
In mixed form: 63/8
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