Add 4/21 and 20/32
4/21 + 20/32 is 137/168.
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,
4/21 = 4 × 32/21 × 32 = 128/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
20/32 = 20 × 21/32 × 21 = 420/672 - Add the two like fractions:
128/672 + 420/672 = 128 + 420/672 = 548/672 - 548/672 simplified gives 137/168
- So, 4/21 + 20/32 = 137/168
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