Add 81/30 and 20/98
1st number: 2 21/30, 2nd number: 20/98
81/30 + 20/98 is 1423/490.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 98 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 30 × 49 = 1470,
81/30 = 81 × 49/30 × 49 = 3969/1470 - Likewise, for the 2nd fraction, since 98 × 15 = 1470,
20/98 = 20 × 15/98 × 15 = 300/1470 - Add the two like fractions:
3969/1470 + 300/1470 = 3969 + 300/1470 = 4269/1470 - 4269/1470 simplified gives 1423/490
- So, 81/30 + 20/98 = 1423/490
In mixed form: 2443/490
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