Add 42/49 and 7/10
42/49 + 7/10 is 109/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 10 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 10 × 49 = 490,
7/10 = 7 × 49/10 × 49 = 343/490 - Add the two like fractions:
420/490 + 343/490 = 420 + 343/490 = 763/490 - 763/490 simplified gives 109/70
- So, 42/49 + 7/10 = 109/70
In mixed form: 139/70
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