Add 15/72 and 90/70
1st number: 15/72, 2nd number: 1 20/70
15/72 + 90/70 is 251/168.
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,
15/72 = 15 × 35/72 × 35 = 525/2520 - Likewise, for the 2nd fraction, since 70 × 36 = 2520,
90/70 = 90 × 36/70 × 36 = 3240/2520 - Add the two like fractions:
525/2520 + 3240/2520 = 525 + 3240/2520 = 3765/2520 - 3765/2520 simplified gives 251/168
- So, 15/72 + 90/70 = 251/168
In mixed form: 183/168
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