Add 81/98 and 18/40
81/98 + 18/40 is 1251/980.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 40 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 98 × 20 = 1960,
81/98 = 81 × 20/98 × 20 = 1620/1960 - Likewise, for the 2nd fraction, since 40 × 49 = 1960,
18/40 = 18 × 49/40 × 49 = 882/1960 - Add the two like fractions:
1620/1960 + 882/1960 = 1620 + 882/1960 = 2502/1960 - 2502/1960 simplified gives 1251/980
- So, 81/98 + 18/40 = 1251/980
In mixed form: 1271/980
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