Add 18/20 and 81/98
18/20 + 81/98 is 423/245.
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,
81/98 = 81 × 10/98 × 10 = 810/980 - Add the two like fractions:
882/980 + 810/980 = 882 + 810/980 = 1692/980 - 1692/980 simplified gives 423/245
- So, 18/20 + 81/98 = 423/245
In mixed form: 1178/245
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