Add 21/30 and 54/98
21/30 + 54/98 is 613/490.
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,
21/30 = 21 × 49/30 × 49 = 1029/1470 - Likewise, for the 2nd fraction, since 98 × 15 = 1470,
54/98 = 54 × 15/98 × 15 = 810/1470 - Add the two like fractions:
1029/1470 + 810/1470 = 1029 + 810/1470 = 1839/1470 - 1839/1470 simplified gives 613/490
- So, 21/30 + 54/98 = 613/490
In mixed form: 1123/490
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