Add 28/42 and 15/35
28/42 + 15/35 is 23/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 35 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
28/42 = 28 × 5/42 × 5 = 140/210 - Likewise, for the 2nd fraction, since 35 × 6 = 210,
15/35 = 15 × 6/35 × 6 = 90/210 - Add the two like fractions:
140/210 + 90/210 = 140 + 90/210 = 230/210 - 230/210 simplified gives 23/21
- So, 28/42 + 15/35 = 23/21
In mixed form: 12/21
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