Add 21/98 and 18/20
21/98 + 18/20 is 39/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 20 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 98 × 10 = 980,
21/98 = 21 × 10/98 × 10 = 210/980 - Likewise, for the 2nd fraction, since 20 × 49 = 980,
18/20 = 18 × 49/20 × 49 = 882/980 - Add the two like fractions:
210/980 + 882/980 = 210 + 882/980 = 1092/980 - 1092/980 simplified gives 39/35
- So, 21/98 + 18/20 = 39/35
In mixed form: 14/35
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