Add 7/98 and 81/20
1st number: 7/98, 2nd number: 4 1/20
7/98 + 81/20 is 577/140.
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,
7/98 = 7 × 10/98 × 10 = 70/980 - Likewise, for the 2nd fraction, since 20 × 49 = 980,
81/20 = 81 × 49/20 × 49 = 3969/980 - Add the two like fractions:
70/980 + 3969/980 = 70 + 3969/980 = 4039/980 - 4039/980 simplified gives 577/140
- So, 7/98 + 81/20 = 577/140
In mixed form: 417/140
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