Add 72/10 and 10/42, Solve 7 2/10 + 10/42 as a fraction

Add 72/10 and 10/42

1^st number: 7 2/10, 2^nd number: 10/42

72/10 + 10/42 is 781/105.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 10 × 21 = 210,
72/10 = 72 × 21/10 × 21 = 1512/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
10/42 = 10 × 5/42 × 5 = 50/210
Add the two like fractions:
1512/210 + 50/210 = 1512 + 50/210 = 1562/210
1562/210 simplified gives 781/105
So, 72/10 + 10/42 = 781/105
In mixed form: 746/105

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