Add 15/20 and 45/27
1st number: 15/20, 2nd number: 1 18/27
15/20 + 45/27 is 29/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 27 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
15/20 = 15 × 27/20 × 27 = 405/540 - Likewise, for the 2nd fraction, since 27 × 20 = 540,
45/27 = 45 × 20/27 × 20 = 900/540 - Add the two like fractions:
405/540 + 900/540 = 405 + 900/540 = 1305/540 - 1305/540 simplified gives 29/12
- So, 15/20 + 45/27 = 29/12
In mixed form: 25/12
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