Add 90/72 and 40/70
1st number: 1 18/72, 2nd number: 40/70
90/72 + 40/70 is 51/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 70 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 72 × 35 = 2520,
90/72 = 90 × 35/72 × 35 = 3150/2520 - Likewise, for the 2nd fraction, since 70 × 36 = 2520,
40/70 = 40 × 36/70 × 36 = 1440/2520 - Add the two like fractions:
3150/2520 + 1440/2520 = 3150 + 1440/2520 = 4590/2520 - 4590/2520 simplified gives 51/28
- So, 90/72 + 40/70 = 51/28
In mixed form: 123/28
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