Add 28/10 and 90/42
1st number: 2 8/10, 2nd number: 2 6/42
28/10 + 90/42 is 173/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
28/10 = 28 × 21/10 × 21 = 588/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
90/42 = 90 × 5/42 × 5 = 450/210 - Add the two like fractions:
588/210 + 450/210 = 588 + 450/210 = 1038/210 - 1038/210 simplified gives 173/35
- So, 28/10 + 90/42 = 173/35
In mixed form: 433/35
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