Add 90/42 and 70/60, Solve 2 6/42 + 1 10/60 as a fraction

Add 90/42 and 70/60

1^st number: 2 6/42, 2^nd number: 1 10/60

90/42 + 70/60 is 139/42.

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,
90/42 = 90 × 10/42 × 10 = 900/420
Likewise, for the 2nd fraction, since 60 × 7 = 420,
70/60 = 70 × 7/60 × 7 = 490/420
Add the two like fractions:
900/420 + 490/420 = 900 + 490/420 = 1390/420
1390/420 simplified gives 139/42
So, 90/42 + 70/60 = 139/42
In mixed form: 313/42

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