Add 28/42 and 70/15
1st number: 28/42, 2nd number: 4 10/15
28/42 + 70/15 is 16/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 15 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 15 × 14 = 210,
70/15 = 70 × 14/15 × 14 = 980/210 - Add the two like fractions:
140/210 + 980/210 = 140 + 980/210 = 1120/210 - 1120/210 simplified gives 16/3
- So, 28/42 + 70/15 = 16/3
In mixed form: 51/3
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