Add 90/70 and 15/36
1st number: 1 20/70, 2nd number: 15/36
90/70 + 15/36 is 143/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 36 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 70 × 18 = 1260,
90/70 = 90 × 18/70 × 18 = 1620/1260 - Likewise, for the 2nd fraction, since 36 × 35 = 1260,
15/36 = 15 × 35/36 × 35 = 525/1260 - Add the two like fractions:
1620/1260 + 525/1260 = 1620 + 525/1260 = 2145/1260 - 2145/1260 simplified gives 143/84
- So, 90/70 + 15/36 = 143/84
In mixed form: 159/84
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