Add 30/40 and 72/8
1st number: 30/40, 2nd number: 9 0/8
30/40 + 72/8 is 39/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
30/40 = 30 × 1/40 × 1 = 30/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
72/8 = 72 × 5/8 × 5 = 360/40 - Add the two like fractions:
30/40 + 360/40 = 30 + 360/40 = 390/40 - 390/40 simplified gives 39/4
- So, 30/40 + 72/8 = 39/4
In mixed form: 93/4
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