Add 70/42 and 21/49, Solve 1 28/42 + 21/49 as a fraction

Add 70/42 and 21/49

1^st number: 1 28/42, 2^nd number: 21/49

70/42 + 21/49 is 44/21.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 49 is 294

Next, find the equivalent fraction of both fractional numbers with denominator 294
For the 1st fraction, since 42 × 7 = 294,
70/42 = 70 × 7/42 × 7 = 490/294
Likewise, for the 2nd fraction, since 49 × 6 = 294,
21/49 = 21 × 6/49 × 6 = 126/294
Add the two like fractions:
490/294 + 126/294 = 490 + 126/294 = 616/294
616/294 simplified gives 44/21
So, 70/42 + 21/49 = 44/21
In mixed form: 22/21

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