Add 72/12 and 21/80
1st number: 6 0/12, 2nd number: 21/80
72/12 + 21/80 is 501/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 12 × 20 = 240,
72/12 = 72 × 20/12 × 20 = 1440/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
21/80 = 21 × 3/80 × 3 = 63/240 - Add the two like fractions:
1440/240 + 63/240 = 1440 + 63/240 = 1503/240 - 1503/240 simplified gives 501/80
- So, 72/12 + 21/80 = 501/80
In mixed form: 621/80
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