Add 1/84 and 90/24, Solve 1/84 + 3 18/24 as a fraction

Add 1/84 and 90/24

1^st number: 1/84, 2^nd number: 3 18/24

1/84 + 90/24 is 79/21.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 24 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 84 × 2 = 168,
1/84 = 1 × 2/84 × 2 = 2/168
Likewise, for the 2nd fraction, since 24 × 7 = 168,
90/24 = 90 × 7/24 × 7 = 630/168
Add the two like fractions:
2/168 + 630/168 = 2 + 630/168 = 632/168
632/168 simplified gives 79/21
So, 1/84 + 90/24 = 79/21
In mixed form: 316/21

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