Add 81/15 and 20/36
1st number: 5 6/15, 2nd number: 20/36
81/15 + 20/36 is 268/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 15 × 12 = 180,
81/15 = 81 × 12/15 × 12 = 972/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
20/36 = 20 × 5/36 × 5 = 100/180 - Add the two like fractions:
972/180 + 100/180 = 972 + 100/180 = 1072/180 - 1072/180 simplified gives 268/45
- So, 81/15 + 20/36 = 268/45
In mixed form: 543/45
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