Add 9/21 and 81/32
1st number: 9/21, 2nd number: 2 17/32
9/21 + 81/32 is 663/224.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 32 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 21 × 32 = 672,
9/21 = 9 × 32/21 × 32 = 288/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
81/32 = 81 × 21/32 × 21 = 1701/672 - Add the two like fractions:
288/672 + 1701/672 = 288 + 1701/672 = 1989/672 - 1989/672 simplified gives 663/224
- So, 9/21 + 81/32 = 663/224
In mixed form: 2215/224
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