Add 30/9 and 72/40
1st number: 3 3/9, 2nd number: 1 32/40
30/9 + 72/40 is 77/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 9 × 40 = 360,
30/9 = 30 × 40/9 × 40 = 1200/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
72/40 = 72 × 9/40 × 9 = 648/360 - Add the two like fractions:
1200/360 + 648/360 = 1200 + 648/360 = 1848/360 - 1848/360 simplified gives 77/15
- So, 30/9 + 72/40 = 77/15
In mixed form: 52/15
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