Add 90/75 and 63/18, Solve 1 15/75 + 3 9/18 as a fraction

Add 90/75 and 63/18

1^st number: 1 15/75, 2^nd number: 3 9/18

90/75 + 63/18 is 47/10.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 18 is 450

Next, find the equivalent fraction of both fractional numbers with denominator 450
For the 1st fraction, since 75 × 6 = 450,
90/75 = 90 × 6/75 × 6 = 540/450
Likewise, for the 2nd fraction, since 18 × 25 = 450,
63/18 = 63 × 25/18 × 25 = 1575/450
Add the two like fractions:
540/450 + 1575/450 = 540 + 1575/450 = 2115/450
2115/450 simplified gives 47/10
So, 90/75 + 63/18 = 47/10
In mixed form: 47/10

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