Add 15/10 and 3/84, Solve 1 5/10 + 3/84 as a fraction

Add 15/10 and 3/84

1^st number: 1 5/10, 2^nd number: 3/84

15/10 + 3/84 is 43/28.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 84 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 10 × 42 = 420,
15/10 = 15 × 42/10 × 42 = 630/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
3/84 = 3 × 5/84 × 5 = 15/420
Add the two like fractions:
630/420 + 15/420 = 630 + 15/420 = 645/420
645/420 simplified gives 43/28
So, 15/10 + 3/84 = 43/28
In mixed form: 115/28

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