Add 30/4 and 21/30, Solve 7 2/4 + 21/30 as a fraction

Add 30/4 and 21/30

1^st number: 7 2/4, 2^nd number: 21/30

30/4 + 21/30 is 41/5.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 30 is 60

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 4 × 15 = 60,
30/4 = 30 × 15/4 × 15 = 450/60
Likewise, for the 2nd fraction, since 30 × 2 = 60,
21/30 = 21 × 2/30 × 2 = 42/60
Add the two like fractions:
450/60 + 42/60 = 450 + 42/60 = 492/60
492/60 simplified gives 41/5
So, 30/4 + 21/30 = 41/5
In mixed form: 81/5

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