Add 21/20 and 8/54, Solve 1 1/20 + 8/54 as a fraction

Add 21/20 and 8/54

1^st number: 1 1/20, 2^nd number: 8/54

21/20 + 8/54 is 647/540.

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 54 is 540

Next, find the equivalent fraction of both fractional numbers with denominator 540
For the 1st fraction, since 20 × 27 = 540,
21/20 = 21 × 27/20 × 27 = 567/540
Likewise, for the 2nd fraction, since 54 × 10 = 540,
8/54 = 8 × 10/54 × 10 = 80/540
Add the two like fractions:
567/540 + 80/540 = 567 + 80/540 = 647/540
So, 21/20 + 8/54 = 647/540
In mixed form: 1107/540

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