Add 42/70 and 20/49
42/70 + 20/49 is 247/245.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 49 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 70 × 7 = 490,
42/70 = 42 × 7/70 × 7 = 294/490 - Likewise, for the 2nd fraction, since 49 × 10 = 490,
20/49 = 20 × 10/49 × 10 = 200/490 - Add the two like fractions:
294/490 + 200/490 = 294 + 200/490 = 494/490 - 494/490 simplified gives 247/245
- So, 42/70 + 20/49 = 247/245
In mixed form: 12/245
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