Add 81/20 and 72/98
1st number: 4 1/20, 2nd number: 72/98
81/20 + 72/98 is 4689/980.
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,
81/20 = 81 × 49/20 × 49 = 3969/980 - Likewise, for the 2nd fraction, since 98 × 10 = 980,
72/98 = 72 × 10/98 × 10 = 720/980 - Add the two like fractions:
3969/980 + 720/980 = 3969 + 720/980 = 4689/980 - So, 81/20 + 72/98 = 4689/980
In mixed form: 4769/980
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