Add 28/30 and 32/21
1st number: 28/30, 2nd number: 1 11/21
28/30 + 32/21 is 86/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
28/30 = 28 × 7/30 × 7 = 196/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
32/21 = 32 × 10/21 × 10 = 320/210 - Add the two like fractions:
196/210 + 320/210 = 196 + 320/210 = 516/210 - 516/210 simplified gives 86/35
- So, 28/30 + 32/21 = 86/35
In mixed form: 216/35
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