Add 81/42 and 70/48, Solve 1 39/42 + 1 22/48 as a fraction

Add 81/42 and 70/48

1^st number: 1 39/42, 2^nd number: 1 22/48

81/42 + 70/48 is 569/168.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 48 is 336

Next, find the equivalent fraction of both fractional numbers with denominator 336
For the 1st fraction, since 42 × 8 = 336,
81/42 = 81 × 8/42 × 8 = 648/336
Likewise, for the 2nd fraction, since 48 × 7 = 336,
70/48 = 70 × 7/48 × 7 = 490/336
Add the two like fractions:
648/336 + 490/336 = 648 + 490/336 = 1138/336
1138/336 simplified gives 569/168
So, 81/42 + 70/48 = 569/168
In mixed form: 365/168

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