Add 21/75 and 27/20, Solve 21/75 + 1 7/20 as a fraction

Add 21/75 and 27/20

1^st number: 21/75, 2^nd number: 1 7/20

21/75 + 27/20 is 163/100.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 20 is 300

Next, find the equivalent fraction of both fractional numbers with denominator 300
For the 1st fraction, since 75 × 4 = 300,
21/75 = 21 × 4/75 × 4 = 84/300
Likewise, for the 2nd fraction, since 20 × 15 = 300,
27/20 = 27 × 15/20 × 15 = 405/300
Add the two like fractions:
84/300 + 405/300 = 84 + 405/300 = 489/300
489/300 simplified gives 163/100
So, 21/75 + 27/20 = 163/100
In mixed form: 163/100

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