Add 7/45 and 81/12
1st number: 7/45, 2nd number: 6 9/12
7/45 + 81/12 is 1243/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
7/45 = 7 × 4/45 × 4 = 28/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
81/12 = 81 × 15/12 × 15 = 1215/180 - Add the two like fractions:
28/180 + 1215/180 = 28 + 1215/180 = 1243/180 - So, 7/45 + 81/12 = 1243/180
In mixed form: 6163/180
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