Add 15/72 and 21/27
15/72 + 21/27 is 71/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 27 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 72 × 3 = 216,
15/72 = 15 × 3/72 × 3 = 45/216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
21/27 = 21 × 8/27 × 8 = 168/216 - Add the two like fractions:
45/216 + 168/216 = 45 + 168/216 = 213/216 - 213/216 simplified gives 71/72
- So, 15/72 + 21/27 = 71/72
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