Add 72/20 and 21/98
1st number: 3 12/20, 2nd number: 21/98
72/20 + 21/98 is 267/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 98 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 20 × 49 = 980,
72/20 = 72 × 49/20 × 49 = 3528/980 - Likewise, for the 2nd fraction, since 98 × 10 = 980,
21/98 = 21 × 10/98 × 10 = 210/980 - Add the two like fractions:
3528/980 + 210/980 = 3528 + 210/980 = 3738/980 - 3738/980 simplified gives 267/70
- So, 72/20 + 21/98 = 267/70
In mixed form: 357/70
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