Add 80/35 and 7/21
1st number: 2 10/35, 2nd number: 7/21
80/35 + 7/21 is 55/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 35 × 3 = 105,
80/35 = 80 × 3/35 × 3 = 240/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
7/21 = 7 × 5/21 × 5 = 35/105 - Add the two like fractions:
240/105 + 35/105 = 240 + 35/105 = 275/105 - 275/105 simplified gives 55/21
- So, 80/35 + 7/21 = 55/21
In mixed form: 213/21
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