Add 70/15 and 7/84, Solve 4 10/15 + 7/84 as a fraction

Add 70/15 and 7/84

1^st number: 4 10/15, 2^nd number: 7/84

70/15 + 7/84 is 19/4.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 84 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 15 × 28 = 420,
70/15 = 70 × 28/15 × 28 = 1960/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
7/84 = 7 × 5/84 × 5 = 35/420
Add the two like fractions:
1960/420 + 35/420 = 1960 + 35/420 = 1995/420
1995/420 simplified gives 19/4
So, 70/15 + 7/84 = 19/4
In mixed form: 43/4

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