Add 90/98 and 9/72
90/98 + 9/72 is 409/392.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 72 is 3528
Next, find the equivalent fraction of both fractional numbers with denominator 3528 - For the 1st fraction, since 98 × 36 = 3528,
90/98 = 90 × 36/98 × 36 = 3240/3528 - Likewise, for the 2nd fraction, since 72 × 49 = 3528,
9/72 = 9 × 49/72 × 49 = 441/3528 - Add the two like fractions:
3240/3528 + 441/3528 = 3240 + 441/3528 = 3681/3528 - 3681/3528 simplified gives 409/392
- So, 90/98 + 9/72 = 409/392
In mixed form: 117/392
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