Add 70/75 and 90/72
1st number: 70/75, 2nd number: 1 18/72
70/75 + 90/72 is 131/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 72 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 75 × 24 = 1800,
70/75 = 70 × 24/75 × 24 = 1680/1800 - Likewise, for the 2nd fraction, since 72 × 25 = 1800,
90/72 = 90 × 25/72 × 25 = 2250/1800 - Add the two like fractions:
1680/1800 + 2250/1800 = 1680 + 2250/1800 = 3930/1800 - 3930/1800 simplified gives 131/60
- So, 70/75 + 90/72 = 131/60
In mixed form: 211/60
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