Add 72/96 and 3/21
72/96 + 3/21 is 25/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 96 and 21 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 96 × 7 = 672,
72/96 = 72 × 7/96 × 7 = 504/672 - Likewise, for the 2nd fraction, since 21 × 32 = 672,
3/21 = 3 × 32/21 × 32 = 96/672 - Add the two like fractions:
504/672 + 96/672 = 504 + 96/672 = 600/672 - 600/672 simplified gives 25/28
- So, 72/96 + 3/21 = 25/28
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