Add 90/72 and 12/70
1st number: 1 18/72, 2nd number: 12/70
90/72 + 12/70 is 199/140.
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,
12/70 = 12 × 36/70 × 36 = 432/2520 - Add the two like fractions:
3150/2520 + 432/2520 = 3150 + 432/2520 = 3582/2520 - 3582/2520 simplified gives 199/140
- So, 90/72 + 12/70 = 199/140
In mixed form: 159/140
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