Add 81/3 and 72/45
1st number: 27 0/3, 2nd number: 1 27/45
81/3 + 72/45 is 143/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 3 × 15 = 45,
81/3 = 81 × 15/3 × 15 = 1215/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
72/45 = 72 × 1/45 × 1 = 72/45 - Add the two like fractions:
1215/45 + 72/45 = 1215 + 72/45 = 1287/45 - 1287/45 simplified gives 143/5
- So, 81/3 + 72/45 = 143/5
In mixed form: 283/5
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