Add 45/42 and 70/60, Solve 1 3/42 + 1 10/60 as a fraction

Add 45/42 and 70/60

1^st number: 1 3/42, 2^nd number: 1 10/60

45/42 + 70/60 is 47/21.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 60 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 42 × 10 = 420,
45/42 = 45 × 10/42 × 10 = 450/420
Likewise, for the 2nd fraction, since 60 × 7 = 420,
70/60 = 70 × 7/60 × 7 = 490/420
Add the two like fractions:
450/420 + 490/420 = 450 + 490/420 = 940/420
940/420 simplified gives 47/21
So, 45/42 + 70/60 = 47/21
In mixed form: 25/21

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