Add 84/45 and 42/72
1st number: 1 39/45, 2nd number: 42/72
84/45 + 42/72 is 49/20.
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,
42/72 = 42 × 5/72 × 5 = 210/360 - Add the two like fractions:
672/360 + 210/360 = 672 + 210/360 = 882/360 - 882/360 simplified gives 49/20
- So, 84/45 + 42/72 = 49/20
In mixed form: 29/20
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