Add 90/70 and 1/15
1st number: 1 20/70, 2nd number: 1/15
90/70 + 1/15 is 142/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
90/70 = 90 × 3/70 × 3 = 270/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
1/15 = 1 × 14/15 × 14 = 14/210 - Add the two like fractions:
270/210 + 14/210 = 270 + 14/210 = 284/210 - 284/210 simplified gives 142/105
- So, 90/70 + 1/15 = 142/105
In mixed form: 137/105
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