Add 18/20 and 40/98
18/20 + 40/98 is 641/490.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 98 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 20 × 49 = 980,
18/20 = 18 × 49/20 × 49 = 882/980 - Likewise, for the 2nd fraction, since 98 × 10 = 980,
40/98 = 40 × 10/98 × 10 = 400/980 - Add the two like fractions:
882/980 + 400/980 = 882 + 400/980 = 1282/980 - 1282/980 simplified gives 641/490
- So, 18/20 + 40/98 = 641/490
In mixed form: 1151/490
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