Add 6/72 and 21/40
6/72 + 21/40 is 73/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
6/72 = 6 × 5/72 × 5 = 30/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
21/40 = 21 × 9/40 × 9 = 189/360 - Add the two like fractions:
30/360 + 189/360 = 30 + 189/360 = 219/360 - 219/360 simplified gives 73/120
- So, 6/72 + 21/40 = 73/120
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