Add 21/36 and 90/8
1st number: 21/36, 2nd number: 11 2/8
21/36 + 90/8 is 71/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 36 × 2 = 72,
21/36 = 21 × 2/36 × 2 = 42/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
90/8 = 90 × 9/8 × 9 = 810/72 - Add the two like fractions:
42/72 + 810/72 = 42 + 810/72 = 852/72 - 852/72 simplified gives 71/6
- So, 21/36 + 90/8 = 71/6
In mixed form: 115/6
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