Add 42/24 and 72/18, Solve 1 18/24 + 4 0/18 as a fraction

Add 42/24 and 72/18

1^st number: 1 18/24, 2^nd number: 4 0/18

42/24 + 72/18 is 23/4.

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 18 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 24 × 3 = 72,
42/24 = 42 × 3/24 × 3 = 126/72
Likewise, for the 2nd fraction, since 18 × 4 = 72,
72/18 = 72 × 4/18 × 4 = 288/72
Add the two like fractions:
126/72 + 288/72 = 126 + 288/72 = 414/72
414/72 simplified gives 23/4
So, 42/24 + 72/18 = 23/4
In mixed form: 53/4

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