Add 21/27 and 75/60, Solve 21/27 + 1 15/60 as a fraction

Add 21/27 and 75/60

1^st number: 21/27, 2^nd number: 1 15/60

21/27 + 75/60 is 73/36.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 60 is 540

Next, find the equivalent fraction of both fractional numbers with denominator 540
For the 1st fraction, since 27 × 20 = 540,
21/27 = 21 × 20/27 × 20 = 420/540
Likewise, for the 2nd fraction, since 60 × 9 = 540,
75/60 = 75 × 9/60 × 9 = 675/540
Add the two like fractions:
420/540 + 675/540 = 420 + 675/540 = 1095/540
1095/540 simplified gives 73/36
So, 21/27 + 75/60 = 73/36
In mixed form: 21/36

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