Add 20/98 and 30/70
20/98 + 30/70 is 31/49.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 98 × 5 = 490,
20/98 = 20 × 5/98 × 5 = 100/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
30/70 = 30 × 7/70 × 7 = 210/490 - Add the two like fractions:
100/490 + 210/490 = 100 + 210/490 = 310/490 - 310/490 simplified gives 31/49
- So, 20/98 + 30/70 = 31/49
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