Add 84/45 and 12/72
1st number: 1 39/45, 2nd number: 12/72
84/45 + 12/72 is 61/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
84/45 = 84 × 8/45 × 8 = 672/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
12/72 = 12 × 5/72 × 5 = 60/360 - Add the two like fractions:
672/360 + 60/360 = 672 + 60/360 = 732/360 - 732/360 simplified gives 61/30
- So, 84/45 + 12/72 = 61/30
In mixed form: 21/30
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