Add 28/36 and 90/72
1st number: 28/36, 2nd number: 1 18/72
28/36 + 90/72 is 73/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 36 × 2 = 72,
28/36 = 28 × 2/36 × 2 = 56/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
90/72 = 90 × 1/72 × 1 = 90/72 - Add the two like fractions:
56/72 + 90/72 = 56 + 90/72 = 146/72 - 146/72 simplified gives 73/36
- So, 28/36 + 90/72 = 73/36
In mixed form: 21/36
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