Add 42/4 and 90/72, Solve 10 2/4 + 1 18/72 as a fraction

Add 42/4 and 90/72

1^st number: 10 2/4, 2^nd number: 1 18/72

42/4 + 90/72 is 47/4.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 72 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 4 × 18 = 72,
42/4 = 42 × 18/4 × 18 = 756/72
Likewise, for the 2nd fraction, since 72 × 1 = 72,
90/72 = 90 × 1/72 × 1 = 90/72
Add the two like fractions:
756/72 + 90/72 = 756 + 90/72 = 846/72
846/72 simplified gives 47/4
So, 42/4 + 90/72 = 47/4
In mixed form: 113/4

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