Add 72/21 and 7/12
1st number: 3 9/21, 2nd number: 7/12
7221 + 712 is 33784.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
7221 = 72 × 421 × 4 = 28884 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
712 = 7 × 712 × 7 = 4984 - Add the two like fractions:
28884 + 4984 = 288 + 4984 = 33784 - So, 72/21 + 7/12 = 337/84
In mixed form: 4184
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