Add 18/42 and 21/32
18/42 + 21/32 is 243/224.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 32 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 42 × 16 = 672,
18/42 = 18 × 16/42 × 16 = 288/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
21/32 = 21 × 21/32 × 21 = 441/672 - Add the two like fractions:
288/672 + 441/672 = 288 + 441/672 = 729/672 - 729/672 simplified gives 243/224
- So, 18/42 + 21/32 = 243/224
In mixed form: 119/224
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