Add 21/45 and 27/4, Solve 21/45 + 6 3/4 as a fraction

Add 21/45 and 27/4

1^st number: 21/45, 2^nd number: 6 3/4

21/45 + 27/4 is 433/60.

Find the least common denominator or LCM of the two denominators:
LCM of 45 and 4 is 180

Next, find the equivalent fraction of both fractional numbers with denominator 180
For the 1st fraction, since 45 × 4 = 180,
21/45 = 21 × 4/45 × 4 = 84/180
Likewise, for the 2nd fraction, since 4 × 45 = 180,
27/4 = 27 × 45/4 × 45 = 1215/180
Add the two like fractions:
84/180 + 1215/180 = 84 + 1215/180 = 1299/180
1299/180 simplified gives 433/60
So, 21/45 + 27/4 = 433/60
In mixed form: 713/60

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