Add 32/20 and 90/21
1st number: 1 12/20, 2nd number: 4 6/21
32/20 + 90/21 is 206/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 21 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
32/20 = 32 × 21/20 × 21 = 672/420 - Likewise, for the 2nd fraction, since 21 × 20 = 420,
90/21 = 90 × 20/21 × 20 = 1800/420 - Add the two like fractions:
672/420 + 1800/420 = 672 + 1800/420 = 2472/420 - 2472/420 simplified gives 206/35
- So, 32/20 + 90/21 = 206/35
In mixed form: 531/35
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