Add 90/7 and 7/45
1st number: 12 6/7, 2nd number: 7/45
90/7 + 7/45 is 4099/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 7 × 45 = 315,
90/7 = 90 × 45/7 × 45 = 4050/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
7/45 = 7 × 7/45 × 7 = 49/315 - Add the two like fractions:
4050/315 + 49/315 = 4050 + 49/315 = 4099/315 - So, 90/7 + 7/45 = 4099/315
In mixed form: 134/315
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