Add 72/15 and 98/40
1st number: 4 12/15, 2nd number: 2 18/40
72/15 + 98/40 is 29/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
72/15 = 72 × 8/15 × 8 = 576/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
98/40 = 98 × 3/40 × 3 = 294/120 - Add the two like fractions:
576/120 + 294/120 = 576 + 294/120 = 870/120 - 870/120 simplified gives 29/4
- So, 72/15 + 98/40 = 29/4
In mixed form: 71/4
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