Add 45/10 and 21/42, Solve 4 5/10 + 21/42 as a fraction

Add 45/10 and 21/42

1^st number: 4 5/10, 2^nd number: 21/42

45/10 + 21/42 is 5/1.

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,
45/10 = 45 × 21/10 × 21 = 945/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
21/42 = 21 × 5/42 × 5 = 105/210
Add the two like fractions:
945/210 + 105/210 = 945 + 105/210 = 1050/210
1050/210 simplified gives 5/1
So, 45/10 + 21/42 = 5/1

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