Add 45/12 and 49/72
1st number: 3 9/12, 2nd number: 49/72
45/12 + 49/72 is 319/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 12 × 6 = 72,
45/12 = 45 × 6/12 × 6 = 270/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
49/72 = 49 × 1/72 × 1 = 49/72 - Add the two like fractions:
270/72 + 49/72 = 270 + 49/72 = 319/72 - So, 45/12 + 49/72 = 319/72
In mixed form: 431/72
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