Add 75/5 and 48/21, Solve 15 0/5 + 2 6/21 as a fraction

Add 75/5 and 48/21

1^st number: 15 0/5, 2^nd number: 2 6/21

75/5 + 48/21 is 121/7.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 21 is 105

Next, find the equivalent fraction of both fractional numbers with denominator 105
For the 1st fraction, since 5 × 21 = 105,
75/5 = 75 × 21/5 × 21 = 1575/105
Likewise, for the 2nd fraction, since 21 × 5 = 105,
48/21 = 48 × 5/21 × 5 = 240/105
Add the two like fractions:
1575/105 + 240/105 = 1575 + 240/105 = 1815/105
1815/105 simplified gives 121/7
So, 75/5 + 48/21 = 121/7
In mixed form: 172/7

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