Add 30/2 and 81/72
1st number: 15 0/2, 2nd number: 1 9/72
30/2 + 81/72 is 129/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 2 × 36 = 72,
30/2 = 30 × 36/2 × 36 = 1080/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
81/72 = 81 × 1/72 × 1 = 81/72 - Add the two like fractions:
1080/72 + 81/72 = 1080 + 81/72 = 1161/72 - 1161/72 simplified gives 129/8
- So, 30/2 + 81/72 = 129/8
In mixed form: 161/8
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