Add 21/45 and 45/10, Solve 21/45 + 4 5/10 as a fraction

Add 21/45 and 45/10

1^st number: 21/45, 2^nd number: 4 5/10

21/45 + 45/10 is 149/30.

Find the least common denominator or LCM of the two denominators:
LCM of 45 and 10 is 90

Next, find the equivalent fraction of both fractional numbers with denominator 90
For the 1st fraction, since 45 × 2 = 90,
21/45 = 21 × 2/45 × 2 = 42/90
Likewise, for the 2nd fraction, since 10 × 9 = 90,
45/10 = 45 × 9/10 × 9 = 405/90
Add the two like fractions:
42/90 + 405/90 = 42 + 405/90 = 447/90
447/90 simplified gives 149/30
So, 21/45 + 45/10 = 149/30
In mixed form: 429/30

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