Add 15/40 and 70/9
1st number: 15/40, 2nd number: 7 7/9
15/40 + 70/9 is 587/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 9 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
15/40 = 15 × 9/40 × 9 = 135/360 - Likewise, for the 2nd fraction, since 9 × 40 = 360,
70/9 = 70 × 40/9 × 40 = 2800/360 - Add the two like fractions:
135/360 + 2800/360 = 135 + 2800/360 = 2935/360 - 2935/360 simplified gives 587/72
- So, 15/40 + 70/9 = 587/72
In mixed form: 811/72
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