Add 15/75 and 70/40
1st number: 15/75, 2nd number: 1 30/40
15/75 + 70/40 is 39/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 40 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 75 × 8 = 600,
15/75 = 15 × 8/75 × 8 = 120/600 - Likewise, for the 2nd fraction, since 40 × 15 = 600,
70/40 = 70 × 15/40 × 15 = 1050/600 - Add the two like fractions:
120/600 + 1050/600 = 120 + 1050/600 = 1170/600 - 1170/600 simplified gives 39/20
- So, 15/75 + 70/40 = 39/20
In mixed form: 119/20
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