Add 21/35 and 28/7
1st number: 21/35, 2nd number: 4 0/7
21/35 + 28/7 is 23/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 35 × 1 = 35,
21/35 = 21 × 1/35 × 1 = 21/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
28/7 = 28 × 5/7 × 5 = 140/35 - Add the two like fractions:
21/35 + 140/35 = 21 + 140/35 = 161/35 - 161/35 simplified gives 23/5
- So, 21/35 + 28/7 = 23/5
In mixed form: 43/5
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