Add 12/72 and 21/36
12/72 + 21/36 is 3/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 36 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
12/72 = 12 × 1/72 × 1 = 12/72 - Likewise, for the 2nd fraction, since 36 × 2 = 72,
21/36 = 21 × 2/36 × 2 = 42/72 - Add the two like fractions:
12/72 + 42/72 = 12 + 42/72 = 54/72 - 54/72 simplified gives 3/4
- So, 12/72 + 21/36 = 3/4
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