Add 12/27 and 21/20, Solve 12/27 + 1 1/20 as a fraction

Add 12/27 and 21/20

1^st number: 12/27, 2^nd number: 1 1/20

12/27 + 21/20 is 269/180.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 20 is 540

Next, find the equivalent fraction of both fractional numbers with denominator 540
For the 1st fraction, since 27 × 20 = 540,
12/27 = 12 × 20/27 × 20 = 240/540
Likewise, for the 2nd fraction, since 20 × 27 = 540,
21/20 = 21 × 27/20 × 27 = 567/540
Add the two like fractions:
240/540 + 567/540 = 240 + 567/540 = 807/540
807/540 simplified gives 269/180
So, 12/27 + 21/20 = 269/180
In mixed form: 189/180

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