Add 18/21 and 20/32
18/21 + 20/32 is 83/56.
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,
18/21 = 18 × 32/21 × 32 = 576/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
20/32 = 20 × 21/32 × 21 = 420/672 - Add the two like fractions:
576/672 + 420/672 = 576 + 420/672 = 996/672 - 996/672 simplified gives 83/56
- So, 18/21 + 20/32 = 83/56
In mixed form: 127/56
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