Add 90/70 and 42/36
1st number: 1 20/70, 2nd number: 1 6/36
90/70 + 42/36 is 103/42.
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,
42/36 = 42 × 35/36 × 35 = 1470/1260 - Add the two like fractions:
1620/1260 + 1470/1260 = 1620 + 1470/1260 = 3090/1260 - 3090/1260 simplified gives 103/42
- So, 90/70 + 42/36 = 103/42
In mixed form: 219/42
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