Add 40/15 and 21/98
1st number: 2 10/15, 2nd number: 21/98
40/15 + 21/98 is 121/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 98 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 15 × 98 = 1470,
40/15 = 40 × 98/15 × 98 = 3920/1470 - Likewise, for the 2nd fraction, since 98 × 15 = 1470,
21/98 = 21 × 15/98 × 15 = 315/1470 - Add the two like fractions:
3920/1470 + 315/1470 = 3920 + 315/1470 = 4235/1470 - 4235/1470 simplified gives 121/42
- So, 40/15 + 21/98 = 121/42
In mixed form: 237/42
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