Add 84/28 and 90/35
1st number: 3 0/28, 2nd number: 2 20/35
84/28 + 90/35 is 39/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
84/28 = 84 × 5/28 × 5 = 420/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
90/35 = 90 × 4/35 × 4 = 360/140 - Add the two like fractions:
420/140 + 360/140 = 420 + 360/140 = 780/140 - 780/140 simplified gives 39/7
- So, 84/28 + 90/35 = 39/7
In mixed form: 54/7
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