Add 21/35 and 90/8
1st number: 21/35, 2nd number: 11 2/8
21/35 + 90/8 is 237/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 8 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 35 × 8 = 280,
21/35 = 21 × 8/35 × 8 = 168/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
90/8 = 90 × 35/8 × 35 = 3150/280 - Add the two like fractions:
168/280 + 3150/280 = 168 + 3150/280 = 3318/280 - 3318/280 simplified gives 237/20
- So, 21/35 + 90/8 = 237/20
In mixed form: 1117/20
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