Add 15/18 and 90/35
1st number: 15/18, 2nd number: 2 20/35
15/18 + 90/35 is 143/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 35 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
15/18 = 15 × 35/18 × 35 = 525/630 - Likewise, for the 2nd fraction, since 35 × 18 = 630,
90/35 = 90 × 18/35 × 18 = 1620/630 - Add the two like fractions:
525/630 + 1620/630 = 525 + 1620/630 = 2145/630 - 2145/630 simplified gives 143/42
- So, 15/18 + 90/35 = 143/42
In mixed form: 317/42
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