Add 72/18 and 90/35, Solve 4 0/18 + 2 20/35 as a fraction

Add 72/18 and 90/35

1^st number: 4 0/18, 2^nd number: 2 20/35

72/18 + 90/35 is 46/7.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 35 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 18 × 35 = 630,
72/18 = 72 × 35/18 × 35 = 2520/630
Likewise, for the 2nd fraction, since 35 × 18 = 630,
90/35 = 90 × 18/35 × 18 = 1620/630
Add the two like fractions:
2520/630 + 1620/630 = 2520 + 1620/630 = 4140/630
4140/630 simplified gives 46/7
So, 72/18 + 90/35 = 46/7
In mixed form: 64/7

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