Add 42/49 and 18/70
42/49 + 18/70 is 39/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 49 × 10 = 490,
42/49 = 42 × 10/49 × 10 = 420/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
18/70 = 18 × 7/70 × 7 = 126/490 - Add the two like fractions:
420/490 + 126/490 = 420 + 126/490 = 546/490 - 546/490 simplified gives 39/35
- So, 42/49 + 18/70 = 39/35
In mixed form: 14/35
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