Add 80/70 and 21/36
1st number: 1 10/70, 2nd number: 21/36
80/70 + 21/36 is 145/84.
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,
80/70 = 80 × 18/70 × 18 = 1440/1260 - Likewise, for the 2nd fraction, since 36 × 35 = 1260,
21/36 = 21 × 35/36 × 35 = 735/1260 - Add the two like fractions:
1440/1260 + 735/1260 = 1440 + 735/1260 = 2175/1260 - 2175/1260 simplified gives 145/84
- So, 80/70 + 21/36 = 145/84
In mixed form: 161/84
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