Add 15/30 and 21/98
15/30 + 21/98 is 5/7.
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,
15/30 = 15 × 49/30 × 49 = 735/1470 - Likewise, for the 2nd fraction, since 98 × 15 = 1470,
21/98 = 21 × 15/98 × 15 = 315/1470 - Add the two like fractions:
735/1470 + 315/1470 = 735 + 315/1470 = 1050/1470 - 1050/1470 simplified gives 5/7
- So, 15/30 + 21/98 = 5/7
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