Add 70/72 and 21/98
70/72 + 21/98 is 299/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 98 is 3528
Next, find the equivalent fraction of both fractional numbers with denominator 3528 - For the 1st fraction, since 72 × 49 = 3528,
70/72 = 70 × 49/72 × 49 = 3430/3528 - Likewise, for the 2nd fraction, since 98 × 36 = 3528,
21/98 = 21 × 36/98 × 36 = 756/3528 - Add the two like fractions:
3430/3528 + 756/3528 = 3430 + 756/3528 = 4186/3528 - 4186/3528 simplified gives 299/252
- So, 70/72 + 21/98 = 299/252
In mixed form: 147/252
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